Chemoselective Conjugate Reduction of α,β-Unsaturated Ketones Catalyzed by Rhodium Amido Complexes in Aqueous Media
作者:Xuefeng Li、Liangchun Li、Yuanfu Tang、Ling Zhong、Linfeng Cun、Jin Zhu、Jian Liao、Jingen Deng
DOI:10.1021/jo100256t
日期:2010.5.7
electron-withdrawing functional groups, could be reduced on the alkenic double bonds with high selectivities employing amido-rhodium hydride complex in aqueousmedia, and up to 100% chemoselectivity has been achieved. It is notable that the chemoselectivity was improved significantly on going from organic solvent to water. Moreover, a 1,4-addition mechanism has been proposed on the basis of the corresponding
Antifungal carbinols having the formula
wherein:
R and R¹ are independently H or CH₃;
X and Y¹ are independently H, 1 to 3 halogens or CF₃; and
X′ and Y are independently H, CH₃, CF₃, OCF₂H, OCH₃ or SCH₃
and their agriculturally and pharmaceutically suitable salts are useful as plant disease control agents.
The compounds may be made e.g. by reacting an appropriate oxirane of formula:
with triazole or its alkali metal salt.
[EN] METHOD FOR MAKING ARYL HYDRAZINES AND SUBSTITUTED INDOLES<br/>[FR] PROCEDE D'ELABORATION D'HYDRAZINES D'ARYLE ET D'INDOLES SUBSTITUES
申请人:RHODIA PHARMA SOLUTIONS INC FO
公开号:WO2004000218A2
公开(公告)日:2003-12-31
A method for making an indole compound includes transition metal-catalyzed arylation of a hydrazone, hydrolysis of the aryl hydrazone to form an aryl hydrazine, and acid catalyzed cyclization of the aryl hydrazine to form the indole compound.