Herein, we report the denovosynthesis and characterization of a series of substituted bithiophene derivatives as novel and inexpensive organic photocatalysts.
在本文中,我们报道了一系列取代的联噻吩衍生物作为新的和廉价的有机光催化剂的从头合成和表征。
Renin inhibiting compounds
申请人:Hoffmann-La Roche Inc.
公开号:US05250517A1
公开(公告)日:1993-10-05
Compounds which are amino acid derivatives and have the formula ##STR1## in which R.sup.1 is hydrogen or methyl, R.sup.2 is ethyl, propyl or imidazol-4-yl, R.sup.3 is isobutyl, cyclohexylmethyl or benzyl, and A is defined as herein are useful as renin inhibitors.
C–H functionalization of indoles. The reaction affords 2,3-difunctionalized indoles in up to 84% yield, but the reaction rate depends strongly on electronicsubstituenteffects. Mechanistic DFT studies and control experiments suggest that the secondary functionalization occurs through an independent photocatalytic oxidation of bromide ions formed during the reaction to generate molecular bromine capable
Visible Light-Mediated Intermolecular C−H Functionalization of Electron-Rich Heterocycles with Malonates
作者:Laura Furst、Bryan S. Matsuura、Jagan M. R. Narayanam、Joseph W. Tucker、Corey R. J. Stephenson
DOI:10.1021/ol101146f
日期:2010.7.2
The photoredox-mediated direct intermolecular C−Hfunctionalization of substituted indoles, pyrroles, and furans with diethyl bromomalonate is described, utilizing the visible light-induced reductive quenching pathway of Ru(bpy)3Cl2. An analysis of reductive quenchers and mechanistic considerations has led to an optimized protocol for the heteroaromatic alkylations, providing products in good yields