63113-55-3Relevant academic research and scientific papers
A novel turn-on colorimetric and fluorescent sensor for Fe3+ and its application in living cells
Hu, Yang,Zhao, Fang,Hu, Shengli,Dong, Yingying,Li, Duanzhuo,Su, Zhenhong
, p. 351 - 356 (2017)
A novel turn-on colorimetric and fluorescent sensor 1 based on rhodamine B was developed as a colorimetric and fluorescent chemosensor for Fe3+. Upon addition of Fe3+ in aqueous ethanol, the 1 displayed a distinct color change from c
Visible-Light-Driven Z -Selective Reaction of Methyl Ketones with DMSO: A Mild Synthetic Approach to Methylthio-Substituted 1,4-Enedione Promoted by Selectfluor
Rastogi, Gaurav K.,Deb, Mohit L.,Baruah, Pranjal K.
, p. 1095 - 1102 (2020/11/02)
Here we disclose a simple, visible-light-driven Z -selective synthesis of methylthio-substituted 1,4-enedione in a single step promoted by Selectfluor. Dimethyl sulfoxide is used as both the 'thio' source and the solvent. Molecular iodine and potassium persulfate are used as catalyst and oxidant, respectively. White light (CFL-30W) is used as the light source. The proposed mechanism involves a Kornblum reaction followed by aldol reaction.
Diastereoselective sp3-C–H Functionalization of Arylmethyl Ketones and Transformation of E- to Z-Products Through Photocatalysis
Rastogi, Gaurav K.,Deka, Bhaskar,Deb, Mohit L.,Baruah, Pranjal K.
, p. 424 - 428 (2019/12/03)
We have developed an efficient metal-free route for the synthesis of 1,4-enedione derivatives under microwave irradiation by reacting easily available arylmethylketones with DMSO or diphenyl sulfoxide in the presence of TBAI and persulfate. The reaction is very clean and completes within very short time. All the reagents and catalysts are cheap and environmentally benign. In addition, the E-isomer of the products can easily be transformed into the Z-isomer by using eosin Y photocatalyst under the irradiation of white CFL.
Iodine-DMSO-promoted divergent reactivities of arylacetylenes
Rather, Suhail A.,Kumar, Atul,Ahmed, Qazi Naveed
supporting information, p. 4511 - 4514 (2019/04/26)
An unprecedented set of efficient, economical, atom-economic and exceedingly selective I2-DMSO-promoted methods is described for the generation of different structures. The reaction represents the first of its kind, involving the use of different iodine concentrations, temperatures, acids and salt to adjust the selectivity for the synthesis of different alkenes, α-functionalized ketones and α-ketomethylthioesters.
Direct Construction of 4-Hydroxybenzils via Para-Selective C-C Bond Coupling of Phenols and Aryl Methyl Ketones
Xiang, Jia-Chen,Cheng, Yan,Wang, Miao,Wu, Yan-Dong,Wu, An-Xin
, p. 4360 - 4363 (2016/10/09)
A highly para-selective C-C bond coupling is presented between phenols C(sp2) and aryl methyl ketones C(sp3), which enables the direct construction of 4-hydroxybenzil derivatives. This practical method exhibits a broad substrate scop
A new fluorescence chemosensor for selective detection of copper ion in aqueous solution
Hu, Yang,Ke, Qian,Yan, Chang,Xu, Cai-Hua,Huang, Xiao-Huan,Hu, Sheng-Li
, p. 2239 - 2243 (2016/05/10)
A new fluorescent chemosensor based upon 2,5-diphenylfuran and di(2-picolyl)amine (DPA) was designed and synthesized. Its structure was confirmed by single crystal X-ray diffraction and its photophysical properties were studied by absorption and fluorescence spectra. This compound can be used to determine Cu2+ ion with high selectivity among a series of cations in aqueous DMSO. This sensor forms a 1:1 complex with Cu2+ and displays fluorescent quenching.
Solvent effects in the reaction between (anthracen-9-yl)methyl sulfides and electron-deficient acetylenes
Gopalakrishnan, Reshma,Jacob, Jomon P.,Mallia, Rekha R.,Unnikrishnan, Perupparampil A.,Prathapan, Sreedharan
, p. 472 - 479 (2015/06/30)
Solvent-dependent diverse reactivity of (anthracen-9-yl)methyl sulfides with a few electron-deficient acetylenes is described. Diversity in reactivity is attributed to competition between one electron transfer, two electron transfer and Diels-Alder reaction of these sulfides with electron-deficient acetylenes. We have proposed plausible mechanisms to account for various reactions observed by us.
C-H functionalization of terminal alkynes towards stereospecific synthesis of (E) or (Z) 2-methylthio-1,4-ene-diones
Devari, Shekaraiah,Kumar, Arvind,Deshidi, Ramesh,Shah, Bhahwal Ali
supporting information, p. 5013 - 5016 (2015/03/30)
An efficient metal free self-sorting tandem protocol for stereospecific synthesis of 2-thio-1,4-enediones involving C-C double bond formation via direct coupling of terminal alkynes has been developed. The method was also extended to the first synthesis of β-thio-γ-keto-α,β-unsaturated esters via a cross coupling reaction with ethyl glyoxylate. The reaction relies on a first of its kind use of Bronsted and Lewis acids to switch selectivity for the synthesis of an E or a Z-isomer respectively.
A highly selective fluorescent sensor for Al3+ based on an aza-18-crown-6 derivative
Song, Jingjing,Hu, Yang,Zhao, Fang,Hu, Shengli
, p. 603 - 605 (2015/11/27)
A new fluorescent sensor derived from 2,5-diphenyl-furan and aza-18-crown-6 has been synthesised. It can selectively bind Al3+ in aqeuous ethanol solution with fluorescence enhancement.
Convergent integration of three self-sorting domino sequences: Three-component direct synthesis of 3-methylthio-4-aryl-maleimides from methyl ketones with acetonitrile and DMSO
Gao, Qinghe,Liu, Shan,Wu, Xia,Wu, Anxin
supporting information, p. 6403 - 6406 (2014/12/10)
An I2-promoted three-component coupling reaction was described for the construction of 3-(methylthio)-4-aryl-1H-pyrrole-2,5-diones from methyl ketones with acetonitrile and DMSO. This transformation involved the in situ generation and application of α-ketoimides. Furthermore, DMSO was converted to DMS in situ, which subsequently served as a methylthiolation reagent in the reaction. To the best of our knowledge, this protocol provided the first known example of convergent integration of three self-sorting domino sequences.
