Metal-Free Oxidative C(sp<sup>3</sup>)–H Bond Functionalization of Alkanes and Conjugate Addition to Chromones
作者:Jincan Zhao、Hong Fang、Ping Qian、Jianlin Han、Yi Pan
DOI:10.1021/ol502524d
日期:2014.10.17
A metal-free oxidative C(sp3)–H bond functionalization and subsequent conjugate addition reaction using di-tert-butyl peroxide (DTBP) as the oxidant was established, which tolerates a wide range of simple alkane substrates to react with different substituted chromones for direct preparation of 2-alkylchromanones.
Catalytic asymmetric conjugate addition of Grignard reagents to chromones
作者:Carlos Vila、Valentín Hornillos、Martín Fañanás-Mastral、Ben L. Feringa
DOI:10.1039/c3cc43105c
日期:——
highly regio- and enantioselective copper catalysed direct conjugateaddition of Grignard reagents to chromones has been developed taking advantage of the reduced reactivity of the resulting magnesium enolates. This methodology tolerates a broad scope of alkyl Grignards including secondary alkyl magnesium reagents as well as functionalised chromones.
[EN] HYDROXY PROPANEDIOL DERIVATIVES, THEIR PREPARATIVE METHOD, PHARMACEUTICAL COMPOSITIONS AND USE<br/>[FR] DÉRIVÉS D'HYDROXYPROPANEDIOL, LEUR PROCÉDÉ DE PRÉPARATION, COMPOSITIONS PHARMACEUTIQUES LES CONTENANT ET LEUR UTILISATION
申请人:INST MATERIA MEDICA CAMS
公开号:WO2011147311A1
公开(公告)日:2011-12-01
Compounds represented by formula (I), preparative method thereof and pharmaceutical compositions containing them and use thereof as immuno-regulation agents. The compounds can treat immunologic derangement, immunosuppression, hypoimmunity, rejection after organ transplantation, and autoimmune disease.