Erratum: Stereo- and regio-selective one-pot synthesis of triazole-based unnatural amino acids and β-amino triazoles (Chemical Communications (2012) 48 (5853-5855) DOI: 10.1039/C2CC32392C)

Full text of DOI:10.1039/C3CC90365F

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ADDITIONS & CORRECTIONS
Unexpectedly large binding constants of azulenes with fullerenes
A. F. M. Mustafizur Rahman, Sumanta Bhattacharya, Xiaobin Peng, Takahide Kimura and Naoki Komatsu
Chem. Commun., 2008, 1196–1198 (DOI: 10.1039/B718392E). Amendment published 3rd July 2013.
We previously reported that azulenes show very high and similar affinity to C60 and C70 and that such binding behaviour of
azulenes is in contrast with that of porphyrins.
After our work was published, an independent work entitled ‘‘A reassessment of the association between azulene and [60]full-
erene. Possible pitfalls in the determination of binding constants through fluorescence spectroscopy’’ was published in Chem.
Commun., 2008, 4744–4746 (DOI: 10.1039/B808357F). After discussion with Professor Lorenzo Stella and further experiments
carried out together, we the authors acknowledge that our interpretation of our experimental data are incorrect and that the
surprisingly large association constant (K = 7.6 Â 104 MÀ1) between azulene and [60]fullerene that we reported is due to the ‘‘inner
filter effect’’, as highlighted by Stella’s group. The authors would like to apologise for this mistake and any subsequent
misunderstanding caused.
A combined SPS-LCD sensor for screening protease specificity
Louise S. Birchall, Rein V. Ulijn and Simon J. Webb
Chem. Commun., 2008, 2861–2863 (DOI: 10.1039/b805321a). Amendment published 11th December 2012.
Since this work was published we have found that LC dewetting can easily occur in the presence of Fmoc-peptides within closed
chambers. We now believe dewetting facilitated by the released Fmoc-peptides was responsible for the light-to-dark optical
transitions we reported in this paper. Our recent studies on Fmoc-peptides within open chambers suggest that although they are
clearly amphiphilic in molecular design, they are not effective at realigning liquid crystals. The authors would like to apologise for
any confusion caused.
Reversible luminescent reaction of amines with copper(I) cyanide
Amanda N. Ley, Lars E. Dunaway, Timothy P. Brewster, Matthew D. Dembo, T. David Harris,
François Baril-Robert, Xiaobo Li, Howard H. Patterson and Robert D. Pike
Chem. Commun., 2010, 46, 2861–2863 (DOI: 10.1039/c002351e). Amendment published 2nd January 2013.
This article acknowledged an incorrect funding number from the National Science Foundation, CHE-0315877. The correct funding
number for this work is CHE-0715266.
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Catalytic enantioselective synthesis of sterically demanding alcohols
using di(28-alkyl)zinc prepared by the refined Charette’s method
Manabu Hatano, Tomokazu Mizuno and Kazuaki Ishihara
Chem. Commun., 2010, 46, 5443–5445 (DOI: 10.1039/c0cc01301c). Amendment published 9th April 2013.
There is an error in the structure of compound 8 in eqn (3). Syn/anti-conformations in 8 are reversely identified and should be
corrected below (syn : anti = 24 : 76).
The sentence in the third paragraph on page 5444 should read: ‘‘Fortunately, anti-epoxide 8, which is a key intermediate in the
synthesis of optically active 1,3-diols with three consecutive chiral carbon centers,23 was obtained with a diastereomeric ratio of
24 : 76 with 97% ee (anti).’’
The text in the ESI for 8 on page S15 should be: (S)-((1R,6R)-7-oxabicyclo[4.1.0]heptan-1-yl)(cyclohexyl)methanol (8): Chiral GC
CHIRALDEX B-DM, 150 1C, tR = 11.7 min (major, S,R,R), 13.2 min (minor, R,S,S).
The authors would like to thank Prof. Dr Toshio Nishikawa for a helpful discussion.
A facile surfactant critical micelle concentration determination
Lifeng Cai, Miriam Gochin and Keliang Liu
Chem. Commun., 2011, 47, 5527–5529 (DOI: 10.1039/C1CC10605H). Amendment published 24th May 2013.
The measurements in the above article used a Molecular Devices SpectraMax M5 plate reader with the detector located above the
plate (top-read), while the light path shown in the original Fig. 1C was for a bottom-read instrument (with detector below the
plate). The correct Fig. 1 should be:
Fig. 1 Converting liquid surface curvature variations in microplate wells into quantitative absorbance signals. (A) Various liquid surface curvatures are formed in microplate wells for
solutions with different surface tensions by the capillary effect. Photograph of a Greiner 384-well black/clear microplate, two rows of wells at top, middle and bottom contain 30 ml
Triton X-100 solution in serial dilution, the last two wells in each row contained buffer only; the remaining rows are empty. The liquid surface curvature variations are distinguishable by
eye from their different reflection of light. (B) Absorbance signal vs. Triton X-100 concentration in the microplate wells measured using a Molecular Device SpectraMax M5 plate reader
by offset of the detecting light beam 1 mm from the well center and detected at 900 nm wavelength. (C) Light paths in the instrument for absorbance measurement in a top-read
instrument (Molecular Device SpectraMax M5 plate reader used in this manuscript). (D) Light path for bottom-read instrument. The light beam was offset from the well center to
enable refraction from a different normal at different liquid surface curvature. The vertical detecting light beam (red line) passes through the liquid (azure shadow)–air interfaces with
refraction and reaches the detector with a shift from the original vertical location. The shift value can be calculated by solving the triangles with known h1 and h2 or h, offset, and the
refractive index of liquid and air, n2, n1, at a given liquid surface curvature radius R (for detail see Supplementary Material 3, ESI).
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The original Supplementary Materials 3 provides equations for calculation of shift values for a bottom-read plate reader (corrected
Fig. 1D). In a top-read plate reader, the refracting detecting light beam changes direction only once when leaving the liquid
(corrected Fig. 1C); like h1, h in the corrected Fig. 1C is insensitive to the liquid curvature change when the offset is B0.7 of the
well radius and can be considered as constant for the same liquid volume; based on the same principle, the shift value in Fig. 1C
can be calculated by the following equations:
Sin(a) = offset/R;
Sin(a+b)/Sin(a) = n2/n1;
Shift = h*tan(b)
Acknowledgements: The authors thank Dr Søren Møller Nielsen, Principal Scientist, Molecular Pharmacology, H. Lundbeck A/S,
Ottiliavej 9, DK-2500 Copenhagen Valby, Denmark for identifying this inconsistency.
Sweet (hetero)aromatics: glycosylated templates for the construction of
saccharide mimetics
Christine Wiebe, Claudine Schlemmer, Stefan Weck and Till Opatz
Chem. Commun., 2011, 47, 9212–9214 (DOI: 10.1039/C1CC13078A). Amendment published 19th February 2013.
Authors of this correction: Claudine Schlemmer and Till Opatz
We have previously reported the formation of diglycosylated isoindolin-2-ones by Larock-iodocyclization of the corresponding
o-alkynylbenzamides. Further investigations revealed however that isobenzofuran-1(3H)-imines are formed instead. This is not
caused by the steric bulk of the glycosyl residues but rather represents the general reactivity of the substrate class. Thus, a revision
of our previously reported structures is necessary.
Background
The iodocyclization products 24 and 25 reported earlier by us were liquids and their structural assignment was based on 2D NMR
data and comparison of the chemical shifts with known compounds (T. Yao, R. C. Larock, J. Org. Chem., 2005, 70, 1432–1437). After
publication of our results, a crystalline product was obtained by introduction of a nitro group into the aromatic system. X-Ray
crystallography revealed that the originally assumed cyclization onto amide nitrogen did not occur and that the amide oxygen was
attacked instead. The NMR data of this product were highly similar to those of 24 and 25 and since standard 1H–13C–correlations
1
had obviously led to a wrong assignment, we recorded H–15N–HMBC data to find all three products being inconsistent with a
lactam structure. Further examination of simpler iodocyclization products reported in the literature by NMR and X-ray crystal-
lography revealed that imidate formation is the rule rather than the exception. A discussion of the course of the reaction can be
found in J. Org. Chem., 2012, 10118–10124, a correction of Scheme 5 in our original publication is given below.
Correction
In Scheme 5, the structures of compounds 24 and 25 have been corrected.
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Scheme 5 Reagents and conditions: (a) 2-iodobenzoyl chloride, N-ethylmorpholine, THF, 0 1C, 90%; (b) 17, Pd(PPh3)2Cl2, CuI, Et3N, DMF, 80 1C, 60%; (c) 12,
Pd(PPh3)2Cl2, CuI, Et3N, DMF, 60 1C, 76%; (d) I2, NaHCO3, CH3CN, 25 1C, 76%; (e) I2, NaHCO3, CH3CN, 25 1C, 94%.
A molecular probe for the optical detection of biogenic amines
Boram Lee, Rosario Scopelliti and Kay Severin
Chem. Commun., 2011, 47, 9639–9641 (DOI: 10.1039/C1CC13604F). Amendment published 25th October 2013.
The structure of probe 1 is not correct. Instead of a hydroxyl group in position 4, it should feature a chloro atom. The correct
structure of probe 1 is depicted below.
The chloro compound can be used as a molecular probe for biogenic amines as described in the manuscript. However, minor
adjustments to the concentrations need to be taken into account. The final concentration of probe 1 in the sensing experiments
should be 9.3 mM instead of 10 mM. The final concentration of probe 1 in the reactions with i-butylamine and histamine should be
4.0 mM instead of 4.2 mM. Furthermore, reference 13 should read ‘‘J.-J. Chen, K.-T. Li and D.-Y. Yang, Org. Lett., 2011, 13, 1658.’’
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An efficient synthesis of hydropyrido[1,2-a]indole-6(7H)-ones via an
In(III)-catalyzed tandem cyclopropane ring-opening/Friedel–Crafts
alkylation sequence
Dadasaheb V. Patil, Marchello A. Cavitt, Paul Grzybowski and Stefan France
Chemical Communications, 2011, 47, 10278–10280 (DOI: 10.1039/c1cc14131g). Amendment published 12th April 2013.
In Table 1 of the original paper, the structures 3o, 3p and 3q are incorrect. Upon further NMR investigation, the correct structures
are shown below. The specific mechanistic details by which these compounds are converted to products 4o–4q are currently under
investigation. The authors apologize for the mistake and any confusion it may have caused.
Ring opening metathesis polymerization of an g4-benzene complex: a
direct synthesis of a polyacetylene with a regular pattern of p bound
metal fragments
Paul D. Zeits, Tobias Fiedler and John A. Gladysz
Chem. Commun., 2012, 48, 7925–7927 (DOI: 10.1039/C2CC32150E). Amendment published 1st July 2013.
An acknowledgements section was not included in the final manuscript, please find this section below:
We thank the Welch Foundation (Grant A-1656) for support.
Stereo- and regio-selective one-pot synthesis of triazole-based unnatural
amino acids and b-amino triazoles
R. B. Nasir Baig and Rajender S. Varma
Chem. Commun., 2012, 48, 5853–5855 (DOI: 10.1039/C2CC32392C). Amendment published 21st December 2012.
In Table 1 entries 9–16 the configuration of the sulfamidates was assigned as ‘‘R’’ instead of ‘‘S’’ which has now been corrected.
The correct table is shown below.
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A small molecule two-photon probe for hydrogen sulfide in live tissues
Sajal Kumar Das, Chang Su Lim, Sun Young Yang, Ji Hee Han and Bong Rae Cho
Chem. Commun., 2012, 48, 8395–8397 (DOI: 10.1039/C2CC33909A). Amendment published 12th April 2013.
Fig. 1(d) for this work should be replaced with the following graph. On page 8396, left column, bottom paragraph, line 3; 15 and
90 GM should be 3 and 16 GM. Line 6 and 7; 302 and 594 GM should be 52 and 104 GM.
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A fluorescein-based probe with high selectivity to cysteine over
homocysteine and glutathione
Huilin Wang, Guodong Zhou, Hongwei Gai and Xiaoqiang Chen
Chem. Commun., 2012, 48, 8341–8343 (DOI: 10.1039/C2CC33932C). Amendment published 4th April 2013.
There were some errors in the structures of the molecules shown in the original Scheme 2. The correct Scheme 2 is shown below.
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In situ formation of b-glycosyl imidinium triflate from participating
thioglycosyl donors: elaboration to disarmed–armed iterative glycosylation
Yu Hsien Lin, Bhaswati Ghosh and Kwok-Kong Tony Mong
Chem. Commun., 2012, 48, 10910–10912 (DOI: 10.1039/C2CC35032G). Amendment published 15th November 2012.
The name of the authors’ affiliation is missing from the address in this manuscript. The correct address, including the affiliation,
is as follows:
Applied Chemistry Department, Science Building II, National Chiao Tung University (NCTU), 1001 Ta Hsueh Road, Hsinchu,
Taiwan 300, Republic of China.
Expansion of the aptamer library from a ‘‘natural soup’’ to an
‘‘unnatural soup’’
Takanori Uzawa, Seiichi Tada, Wei Wang and Yoshihiro Ito
Chem. Commun., 2013, 49, 1786–1795 (DOI: 10.1039/C2CC36348H). Amendment published 24th May 2013.
Some errors were found in two of the figures in this article. The errors are as follows:
In Fig. 5; ‘‘T’’ on mRNA should be ‘‘U’’.
In Fig. 7B left; the position of NH2 was not correct.
In Fig. 7B right; CH2 was missed in between CO and Cl.
The corrected figures are given below:
Fig. 5 Incorporation of unnatural amino acid using tRNA. (3.2.2).
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Novel bisimidazolium pincers as low loading ligands for in situ
palladium-catalyzed Suzuki–Miyaura reaction in the ambient atmosphere
Chao Gao, Hongjun Zhou, Siping Wei, Yinsong Zhao, Jingsong Youa and Ge Gao
Chem. Commun., 2013, 49, 1127–1129 (DOI: 10.1039/C2CC36375E). Amendment published 23rd August 2013.
We recently reported a facile synthesis of triazinonide-bridged bisimidazolium pincers (Scheme 1). The coupling of trichloro-
triazine (TCT) with 2.2 equivalents of a N-substituted imidazole in pretreated CH3CN to afford triazinonide-bridged bisimidazo-
lium pincer B through hydrolysis of the unstable intermediate A. Unlike aryl pincers (R = aryls), low temperature of 0 1C was
necessary for alkyl pincers (R = Alkyls) because further hydrolysis occurred very easily to afford compound C at higher temperature.
The X-ray analyses confirmed the triazinonide-bridged structure B and further hydrolyzed structure C.
Scheme 1
In the process of our work, Alexander Poethig and Thomas Strassner reported a similar but different structure: triazinol-bridged
bisimidazolium pincers F which correspond to HCl adducts of the triazinonide-bridged salts reported by us and were obtained by
a temperature-programmed reaction (addition at 0 1C, 30 min at rt, 30 min at 60 1C and 4.5 h at 110 1C) starting from TCT with a
large excess of N-substituted imidazoles in a CH3CN/H2O solvent mixture (Scheme 2). The triazinol bridge was transformed into
triazinonide bridge after these pincers formed complexes with silver. See: ref. 16a, Organometallics, 2011, 30, 6674–6684.
Scheme 2
Based on the above comparison, the two similar but different reaction conditions led to two similar but different pincer structures.
Nevertheless, the use of the word ‘‘novel’’ is inappropriate, and the above mentioned article should have been acknowledged and
discussed in detail in the communication.
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Facile synthesis and regeneration of Mg(BH4)2 by high energy reactive
ball milling of MgB2
Shalabh Gupta, Ihor Z. Hlova, Takeshi Kobayashi, Roman V. Denys, Fu Chen, Ihor Y. Zavaliy, Marek Pruski and
Vitalij K. Pecharsky
Chem. Commun., 2013, 49, 828–830 (DOI: 10.1039/c2cc36580d). Amendment published 16th January 2013.
The following relevant article was inadvertently not cited:
´
C. Pistidda, S. Garroni, F. Dolci, E. G. Bardajı, A. Khandelwal, P. Nolis, M. Dornheim, R. Gosalawit, T. Jensen, Y. Cerenius,
˜
´
S. Surinach, M. D. Baro, W. Lohstroh, M. Fichtner, J. Alloys Compd., 2010, 508, 212.
This issue was brought to our attention by the editorial board on behalf of the authors of the above paper and we wish to express
regret for not including it in the list of references. We were aware of this work during our research and the citation was indeed
included in earlier versions of the manuscript during its preparation. Unfortunately, the reference was accidently removed during
subsequent revisions, and this oversight has been carried over into the published paper.
The study by Pistidda et al. reports the synthesis of Mg(BH4)2 exclusively by reactive ball milling of MgB2 at room temperature
under 100 bar of hydrogen and characterization of the obtained amorphous product via NMR. This work should have been cited
along with references 8a–c in the introduction section. The results reported by Pistidda et al. agree well with some of the data in
Fig. 2 of our paper and this fact should have been duly acknowledged in the discussion of this figure. We have further examined
the effects of hydrogen pressure, milling time, and milling energy (as ball to sample ratio) onto the reaction progress, intermediate
species, and final products. Based on these analyses we have tried to provide detailed insights into the reaction mechanism. We
also demonstrated the possibility to regenerate the dehydrogenated product through reactive milling.
Glucose-Neopentyl Glycol (GNG) amphiphiles for membrane
protein study
Pil Seok Chae, Rohini R. Rana, Kamil Gotfryd, Søren G. F. Rasmussen, Andrew C. Kruse, Kyung Ho Cho,
Stefano Capaldi, Emil Carlsson, Brian Kobilka, Claus J. Loland, Ulrik Gether, Surajit Banerjee, Bernadette Byrne,
John K. Lee and Samuel H. Gellman
Chem. Commun., 2013, 49, 2287–2289 (DOI: 10.1039/c2cc36844g). Amendment published 3rd April 2013.
The graphics in Fig. 1 and the table of contents graphic are incorrect. The structure is shown in both as an L-sugar rather than a
D-sugar. The correct graphics are shown below.
Fig. 1
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Table of contents graphic
Toluene derivatives as simple coupling precursors for cascade palladium-
catalyzed oxidative C–H bond acylation of acetanilides
Yinuo Wu, Pui Ying Choy, Fei Mao and Fuk Yee Kwong
Chem. Commun., 2013, 49, 689–691 (DOI: 10.1039/C2CC37352A). Amendment published 18th December 2012.
After completion of our work, a closely related paper for the ortho-acylation of 2-arylpyridine appeared in Organic Letters,
Srimanta Guin, Saroj Kumar Rout, Arghya Banerjee, Shyamapada Nandi and Bhisma K. Patel, Org. Lett., 2012, 14, 5294.
Chloride sensing via suppression of excited state intramolecular proton
transfer in squaramides
Mintu Porel, Vijayakumar Ramalingam, Maciej E. Domaradzki, Victor G. Young, Vaidyanathan Ramamurthy and
Rajeev S. Muthyala
Chem. Commun., 2013, 49, 1633–1635 (DOI: 10.1039/c3cc38767d). Amendment published 30th January 2013.
There is an error in four structures (I, I.Cl, I* and I.Cl*) in Fig. 2. The correct Fig. 2 is displayed below.
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Synthesis and characterization of a luminescent and fully rigid
tetrakisimidazolium macrocycle
Hongjun Zhou, Zhi Wang, Chao Gao, Jingsong You and Ge Gao
Chem. Commun., 2013, 49, 1832–1834 (DOI: 10.1039/C3CC38914F). Amendment published 23rd August 2013.
In this communication, we wrote ‘‘We recently discovered that highly reactive trichlorotriazine (TCT) could react with
N-arylimidazoles to form triazinonide-bridged bisimidazolium pincers in good yields under mild conditions.10’’ A related paper
about interesting triazinol-bridged bisimidazolium pincers was not cited.
The sentence should be revised as follows:
Strassner et al. and we reported the triazinol-bridged10a and the triazinonide-bridged10b bisimidazolium pincers synthesized from
N-arylimidazoles with TCT, respectively.
The new reference 10 then should be:
10. (a) For triazinol-bridged pincers, see: A. Poethig and T. Strassner, Organometallics, 2011, 30, 6674; (b) for triazinonide-bridged
pincers, see: C. Gao, H. Zhou, S. Wei, Y. Zhao, J. You and G. Gao, Chem. Commun., 2013, 49, 1127.
Low temperature phase selective synthesis of Cu2ZnSnS4 quantum dots
Christopher A. Cattley, Cheng Cheng, Simon M. Fairclough, Laura M. Droessler, Neil P. Young, Jamie H. Warner,
Jason M. Smith, Hazel E. Assender and Andrew A. R. Watt
Chem. Commun., 2013, 49, 3745–3747 (DOI: 10.1039/C3CC39042J). Amendment published 1st July 2013.
There are errors in the 2nd, 3rd and 4th sentences of the fifth paragraph on page 1, which contradict the description of the
synthesis methodology stated in the supplementary information. The sentences should read:
The metal complexes were prepared by heating metal salts with oleylamine (OLA) at 130 1C. In a typical preparation Cu(C5H7O2)2,
Zn(O2CCH3)2, SnCl4.(H2O)5, OLA are placed in an argon-purged three neck flask and heated up to 75 1C under vacuum and
constant stirring, the flask was then purged with argon as the temperature is increased to 130 1C. A solution of (TMS)2S in ODE was
then injected into the reaction vessel at the required reaction temperature.
The JCPDS number quoted for tetragonal kesterite CZTS (I42m) was inadvertently quoted as 20-0575. The correct JCPDS for this
phase is 26-0575.
There is an error in the graphic for Fig. 2. The peak labelled as 204 in the XRD spectra for the 140 1C synthesis should be labelled
as 220. The correct Fig. 2 is displayed below.
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A novel multifunctional coupler: the concept of coupling and proof of
principle
Stefan Mommer, Kevin Lamberts, Helmut Keul and Martin Moller
¨
Chem. Commun., 2013, 49, 3288–3290 (DOI: 10.1039/C3CC40369F). Amendment published 27th March 2013.
An acknowledgements section was not included in the final manuscript. Please find this section below.
This study was performed within the Interreg Euregio Meuse-Rhine IV-A consortium ‘‘BioMiMedics’’ (2011–2014) financed
through generous contributions of the European Union (through Interreg IV-A) and the government of North Rhine-Westphalia
(Germany).
Molecular amino-phosphonate cobalt–lanthanide clusters
Eufemio Moreno Pineda, Floriana Tuna, Robin G. Pritchard, Andrew C. Regan, Richard E. P. Winpenny and
Eric J. L. McInnes
Chem. Commun., 2013, 49, 3522–3524 (DOI: 10.1039/C3CC40907D). Amendment published 3rd July 2013.
There was an error in the author list of the original paper and Yan-Zhen Zheng was left off the list. The authors would like to
apologise for this oversight and add Yan-Zhen Zheng as a co-author.
Unprecedented 1,3-migration of the aryl ligand in metallacyclic aryl
a-naphthyl Pt(IV) difluorides to produce b-arylnaphthyl Pt(II) complexes
Ina S. Dubinsky-Davidchik, Israel Goldberg, Arkadi Vigalok and Andrei N. Vedernikov
Chem. Commun., 2013, 49, 3446–3448 (DOI: 10.1039/C3CC41079J). Amendment published 23rd August 2013.
The acknowledgements for this paper were omitted in error. These should read as follows:
We thank the US-Israel Binational Science Foundation for supporting this work.
A fullerene dyad with a tri(octyloxy)benzene moiety induced efficient
nanoscale active layer for the poly(3-hexylthiophene)-based bulk
heterojunction solar cell applications
Pan Zhang, Chao Li, Yaowen Li, Xiaoming Yang, Liwei Chen, Bin Xu, Wenjing Tian and Yingfeng Tu
Chem. Commun., 2013, 49, 4917–4919 (DOI: 10.1039/C3CC41321G). Amendment published 23rd May 2013.
An acknowledgements section was not included in the final manuscript. Please find this section below.
We acknowledge financial support from NSFC (Grant No. 21204057), Jiangsu Provincial NSF (Grant No. BK2012213), Open Project
of State Key Laboratory of Supramolecular Structure and Materials (Grant No. sklssm201333) and Priority Academic Program
Development of Jiangsu Higher Education Institutions.
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A multifunctional nanoprobe based on Au–Fe3O4 nanoparticles for
multimodal and ultrasensitive detection of cancer cells
Jian Liu, Wei Zhang, Haoli Zhang, Zhengyin Yang, Tianrong Li, Baodui Wang, Xing Huo, Rui Wang and Haotai Chen
Chem. Commun., 2013, 49, 4938–4940 (DOI: 10.1039/C3CC41984C). Amendment published 9th May 2013.
There are errors in the details of the author affiliation and address c. The correct address, including the affiliation, is as follows:
c State Key Laboratory of Veterinary Etiological Biology, National Foot-and-Mouth Disease Reference Laboratory, Lanzhou
Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, Gansu, P.R. China.
Highly diastereoselective and enantioselective direct Michael addition of
phthalide derivatives to nitroolefins
Jie Luo, Haifei Wang, Fangrui Zhong, Jacek Kwiatkowski, Li-Wen Xu and Yixin Lu
Chem. Commun., 2013, 49, 5775–5777 (DOI: 10.1039/C3CC42187B). Amendment published 21st June 2013.
During the preparation of this manuscript, a related early report (W. K. Janowski, R. H. Prager, Aust. J. Chem., 1989, 42, 731) was
unintentionally missed out. We sincerely apologize for this oversight.
Synthesis of core–shell NaBH4@M (M = Co, Cu, Fe, Ni, Sn) nanoparticles
leading to varied morphologies
Meganne Christian and Kondo-François Aguey-Zinsou
Chem. Commun., 2013, 49, 6794–6796 (DOI: 10.1039/C3CC42815J). Amendment published 28th June 2013.
The Fig. 3 graphic is incorrect. The correct graphic is shown below.
Fig. 3
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Thiourea-phosphonium salts from amino acids: cooperative
phase-transfer catalysts in the enantioselective aza-Henry reaction
Dongdong Cao, Zhuo Chai, Jiaxing Zhang, Zhengqing Ye, Hua Xiao, Hongyu Wang, Jinhao Chen, Xiaoyu Wu
and Gang Zhao
Chem. Commun., 2013, 49, 5972–5974 (DOI: 10.1039/C3CC42864H). Amendment published 7th June 2013.
A citation is missing in the published manuscript, the citation is shown below:
Tetrahedron., 2013, 69, 5104–5111 (DOI: 10.1016/j.tet.2013.04.079)
Complexation with organometallic ruthenium pharmacophores enhances
the ability of 4-anilinoquinazolines inducing apoptosis
Wei Zheng, Qun Luo, Yu Lin, Yao Zhao, Xiuli Wang, Zhifeng Du, Xiang Hao, Yang Yu, Shuang Lu, Liyun Ji,
¨
Xianchan Li, Ling Yang and Fuyi Wang
Chem. Commun., 2013 (DOI: 10.1039/C3CC43000F). Amendment published 20th August 2013.
The cited reference 3(d) should be F. Kratz, M. Hartmann, B. Keppler and L. Messori, J. Biol. Chem., 1994, 269, 2581–2588.
Coherent manipulation of spin qubits based on polyoxometalates: the
14–
case of the single ion magnet [GdW30P5O110
]
´
´
Jose J. Baldovı, Salvador Cardona-Serra, Juan M. Clemente-Juan, Eugenio Coronado, Alejandro Gaita-Arin˜o and
Helena Prima-Garc´ıa
Chem. Commun., 2013, (DOI: 10.1039/C3CC44838J). Amendment published 5th September 2013.
12–
14–
The charge of the title compound is
and not
as stated in the title and throughout the manuscript. This is incorrect in 5 places
throughout the paper, including on the second page, where the formula of the polycrystalline powder should be [YW30P5O110H2O]K12ÁnH2O.
Design of supramolecular amino acids to template peptide folding
Davoud Mozhdehi and Zhibin Guan
Chem. Commun., 2013, 49, 9950–9952 (DOI: 10.1039/C3CC45419C). Amendment published 4th October 2013.
An acknowledgement section was missed from the paper and the authors have now included this below.
We thank the US Department of Energy, Division of Materials Sciences (DE-FG02-04ER46162) and National Science Foundation
(DMR-1217651) for financial support.
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Additions & Corrections
An asymmetric tubular ceramic-carbonate dual phase membrane for high
temperature CO2 separation
´
Xueliang Dong, Jose Ortiz Landeros and Y. S. Lin
Chem. Commun., 2013, 49, 9654–9656 (DOI: 10.1039/C3CC45949G). Amendment published 24th September 2013.
There is an error in the caption of Fig. 4. The sentence ‘‘CO2 permeation flux and permeance of asymmetric tubular dual-phase
membranes as a function of feed CO2 concentration at 900 1C’’ should read ‘‘CO2 permeation flux and permeance of asymmetric
tubular dual-phase membranes as a function of feed CO2 concentration at 700 1C.’’
ꢀc
This journal is The Royal Society of Chemistry 2013
Chem. Commun., 2013, 49, 11812–11828 | 11827

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Additions & Corrections
ChemComm
RETRACTION
Pt-free cathode catalysts prepared via multi-step pyrolysis of Fe
phthalocyanine and phenolic resin for fuel cells
Libin Wu, Yuta Nabae, Shogo Moriya, Katsuyuki Matsubayashi, Nazrul M. Islam, Shigeki Kuroki,
Masa-aki Kakimoto, Jun-ichi Ozaki and Seizo Miyata
Chem. Commun., 2010, 46, 6377–6379 (DOI: 10.1039/C0CC01597K). Retraction published 17th April 2013.
We, the named authors, hereby wholly retract this Chemical Communications article, due to the fact that we have discovered that
data relating to Fig. 2 and Fig. 3 presented in the communication were fabricated.
Signed: Libin Wu, Yuta Nabae, Shogo Moriya, Katsuyuki Matsubayashi, Nazrul M. Islam, Shigeki Kuroki, Masa-aki Kakimoto,
Jun-ichi Ozaki and Seizo Miyata, Tokyo Institute of Technology, Japan, 17 April 2013.
Retraction endorsed by Robert D. Eagling, Editor, Chemical Communications.
The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers.
Additions, corrections and retractions can be viewed online by accessing the original article to which they apply.
ꢀc
This journal is The Royal Society of Chemistry 2013
11828 | Chem. Commun., 2013, 49, 11812–11828