7653-94-3Relevant academic research and scientific papers
Rhodium-Catalyzed Arylation of Cyclopropenes Based on Asymmetric Direct Functionalization of Three-Membered Carbocycles
Dian, Longyang,Marek, Ilan
supporting information, p. 3682 - 3686 (2018/03/06)
A variety of highly diastereo- and enantiomerically enriched arylcyclopropanes is obtained through the asymmetric rhodium-catalyzed arylation reaction of achiral nonfunctionalized cyclopropene derivatives with commercially available aryl boronic acids in the presence of (R,S)-Josiphos.
Nucleophilic intermolecular chemistry and reactivity of dimethylcarbene
Cang, Hui,Moss, Robert A.,Krogh-Jespersen, Karsten
supporting information, p. 2730 - 2737 (2015/03/04)
Experimental and computational studies find that dimethylcarbene (DMC), the parent dialkylcarbene, is both predicted to be and functions as a very reactive nucleophilic carbene in addition reactions with five simple alkenes. Activation energies and enthal
Synergistic effect of additives on cyclopropanation of olefins
Cheng, Donghao,Huang, Deshun,Shi, Yian
supporting information, p. 5588 - 5591 (2013/09/12)
An efficient cyclopropanation of olefins with Zn(CH2I) 2, a catalytic amount of CCl3CO2H, and 1,2-dimethoxyethane at room temperature is described. A wide variety of olefins, including acid-sensitive substrates,
The first example of magnesium carbenoid 1,3-CH insertion reaction: A novel method for synthesis of cyclopropanes from 1-chloroalkyl phenyl sulfoxides in high yields
Satoh, Tsuyoshi,Musashi, Jun,Kondo, Atsushi
, p. 599 - 602 (2007/10/03)
Treatment of 1-chloroalkyl phenyl sulfoxides having a geminal methyl group or a geminal benzyl group at the 2-position in THF at -78°C with isopropylmagnesium chloride gave magnesium carbenoids. Carbenoid 1,3-CH insertion reaction of the magnesium carbeno
Experimental and computational study of the intramolecular reactivity of free tert-butylphenylmethylene. Modification of the chemistry of tert-butylmethylene by the introduction of a phenyl group
Armstrong, Brian M.,McKee, Michael L.,Shevlin, Philip B.
, p. 7408 - 7412 (2007/10/03)
The chemistry of ferf-butylphenylmethylene, 2, has been investigated experimentally and computationally. Free carbene 2 was generated by the thermal rearrangement of p-ter-butylphenyl-methylene and observed to rearrange by C-H insertion to give 1,1-dimethyl-2-phenylcyclopropane, 3, and by C-C insertion to yield 2-methyl-3-phenyl-2-butene, 4. An examination of the 3:4 ratio led to the conclusion that C-H insertion is favored over C-C insertion by 1.6 ± 0.1 kcal/mol in good agreement with a calculated (PMP2/6-31G(d)//MP2/6-31G(d)+ZPC/6-31(d)) value of 2.0 kcal/ mol. The S-T gap in 2 is estimated to be 5-6 kcal/mol.
Dimethylation and Hydrodechlorination of gem-Dichlorocyclopropanes with Grignard Reagents Promoted by Fe(III) or Co(II) Catalyst
Nishii, Yoshinori,Wakasugi, Kazunori,Tanabe, Yoo
, p. 66 - 69 (2007/10/03)
Reactions of gem-dichlorocyclopropanes with MeMgBr or t-BuMgCl were examined in the presence of Fe, Co, and Ni (group VIIIA, first transition series) catalysts.The Fe(dbm)3 catalyst promoted dimethylations of gem-dichlorocyclopropanes in the presence of 4
Conversion of non-activated alkenes into cyclopropanes with lithiated sulfones under nickel catalysis
Gai, Yonghua,Julia, Marc,Verpeaux, Jean-Noel
, p. 817 - 829 (2007/10/03)
Summary -Lithiated alkyl ierf-butyl sulfones convert alkenes into cyclopropane derivatives under nickel catalysis. The new reaction appears to differ from the known cyclopropanation reactions from both the stereochemical and the electronic points of view. Elsevier.
The Stereochemistry of Rearrangements of Aryl and Hetaryl Groups to Primary Carbenic Centers
Slack, W. E.,Taylor, W.,Moseley, C. G.,Chang, K. T.,Kraska, A.,et al.
, p. 2647 - 2650 (2007/10/02)
The products and stereochemistries of carbenic decompositions of varied 2-aryl-1-diazoalkanes and 1-diazo-2-(2-hetaryl)propanes have been determined.
