Imines et enamines stanniques: preparation et caracterisation
作者:Jean-Marie Brocas、Bernard De Jeso、Jean-Claude Pommier
DOI:10.1016/s0022-328x(00)98027-6
日期:1976.11
been obtained by two different routes: (1) reaction of organotin enolates with stannazane; (2) reaction of tributyltin chloride with a magnesium derivative of imine. The first method allows the preparation of the less hindered compounds, the reverse being true for the latter.
Syntheses of Z-olefin-containing lepidopteran insect pheromones
申请人:California Institute of Technology
公开号:US08987531B2
公开(公告)日:2015-03-24
The present invention is directed to methods of synthesizing insect pheromones, particularly lepidopteran insect pheromones, their precursors and derivatives from inexpensive, readily available starting materials using olefin metathesis catalysis.
SYNTHESIS OF Z-OLEFIN-CONTAINING LEPIDOPTERAN INSECT PHEROMONES
申请人:California Institute of Technology
公开号:US20130231499A1
公开(公告)日:2013-09-05
The present invention is directed to methods of synthesizing insect pheromones, particularly lepidopteran insect pheromones, their precursors and derivatives from inexpensive, readily available starting materials using olefin metathesis catalysis.
Carbomethoxydifluoromethylation of enol acetates with methyl (chlorosulfonyl)difluoroacetate using visible-light photoredox catalysis. Synthesis of 2,2-difluoro-γ-ketoesters
作者:Charles S. Thomoson、William R. Dolbier
DOI:10.1016/j.jfluchem.2015.07.018
日期:2015.10
In a visible light, room temperature photoredox catalytic process using 0.5 mol% of a Ir[(dF(CF3)p-py)(2)(dtbbpy)]PF6 catalyst, a general method for attaching a carbomethoxydifluoromethyl group to the alpha position of a ketone, using the reaction of methyl (chlorosulfonyl)difluoroacetate (MCDA) with enol acetates, is reported. This method allows the synthesis of a variety of 2,2-difluoro-gamma-ketoesters in moderate to very good yields. (C) 2015 Elsevier B.V. All rights reserved.