stereoselective hydroxylation and enantioselective dehalogenation cascade reaction was developed for the synthesis of optically active β-haloalcohols from halohydrocarbons. This cascade system employed P450 and halohydrin dehalogenase as two compatible biocatalysts, allowing a straightforward, greener and efficient access to β-halohydrins with excellent enantioselectivities (98–99%).
Friedel-Crafts Aralkylation. II. The AlCl<sub>3</sub>·CH<sub>3</sub>NO<sub>2</sub>-catalyzed Phenethylation of Benzene and Toluene with 2-Arylethyl Chlorides in a Nitromethane Solution
作者:Makoto Ichii
DOI:10.1246/bcsj.45.2810
日期:1972.9
attack by the aromatic substrate on the phenethyl chloride-catalyst system is proposed for the reactions. Competitive phenethylations of benzene and toluene were also carried out at 50°C. Both the isomerdistribution and the relative reactivity of toluene to benzene are affected by the ring-substituents, the effects of which are correlated closer with the substrate selectivity. These results suggest
INDAZOLE- AND PYRROLOPYRIDINE-DERIVATIVE AND PHARMACEUTICAL USE THEREOF
申请人:Mizuno Kazuhiro
公开号:US20140057895A1
公开(公告)日:2014-02-27
The present invention relates to a novel indazole- or pyrrolopyridine-derivative comprising a 5 membered heterocyclic substituent at 1 position thereof which has an agonistic action or a partial agonistic action against serotonin-4 receptor, and a pharmaceutical composition comprising the same.