organic chemistry, reviewThis review is concerned with the mechanistic and kinetic behavior of 1,4-ketylalkyl radicals. Part of the discussion is centered on the Norrish Type II reactions. The aspects covered are directly relevant to the behavior of the intermediate biradical. Biradicals are ...
reductive Ugi-type reactions followed by hydrogenation. Standard condition: amide 0.3 mmol, IrCl(CO)(PPh3)21 mol%, TMDS 0.6 mmol, CH2Cl23 mL, isocyanide 0.6 mmol, CH3COOH 0.36 mmol or trimethylsilyl azide 0.6 mmol; yields of purified product following flash column ...
Multicomponent reactions (MCRs) facilitate the rapid and diverse construction of molecular scaffolds with modularity and step economy. In this work, engagement of boronic acids as carbon nucleophiles culminates in a Passerini-type three-component couplin
H Zhao,GF Vance - 《Journal of Inclusion Phenomena & Molecular Recognition in Chemistry》 被引量: 80发表: 1998年 Role of conformational effects on the regioselectivity of macrocyclic INOC reactions: two new asymmetric total syntheses of (+)-brefeldin A. ChemInform is a weekly Abstracting Service,...
摘要: Imidazoline-catalyzed enantioselective Friedel–Crafts (FC)-type reactions were established usingC3-symmetric chiral trisimidazolines. The imidazoline catalysts promoted the FC-type reaction of aldimines with 2-naphthols to produce the corresponding adducts in high yields with up to 99% ee....
1 Investigations of reaction mechanisms. a, In situ monitoring of change in absorption for reactions in DMSO (with TMQ and protected by argon). (Note: the concentration of H-BFDO at the beginning was 5 mg ml−1 and the reaction mixture was left to stand without stirring to prevent ...
Reactions of Esters and Esterification Catalyzed by Heteropolyacids in a Homogeneous Liquid-Phase Effects of the C... Decomposition of isobutyl propionate (IBP) (Reaction (1)), ester exchange of IBP with acetic acid (Reaction (2)), ester exchange of IBP with n -propyl alco... CW Hu,M ...
关键词: indole derivatives, isoindole derivatives addition reactions C‐C bond formation microwave chemistry, sonochemistry, mechanochemistry DOI: 10.1002/chin.201418114 被引量: 1 年份: 2014 收藏 引用 批量引用 报错 分享 全部来源 免费下载 求助全文 Wiley Wiley dx.doi.org publish.csiro.au publish....
The Grignard reaction is a fundamental tool for constructing C-C bonds. Although it is widely used in synthetic chemistry, it is normally applied in early stage functionalizations owing to poor functional group tolerance and less availability of car
Comprehensive Organometallic Chemistry Reference work1982, Comprehensive Organometallic Chemistry T. Onak Explore book 5.4.3.2.5 Preparation of polyborane carbonyls Polyborane carbonyls with CB attachment have been obtained from displacement reactions of the type shown in equations (92–95). (92) (93)...