One-Pot Generation of C≡X Bonds from Methyl 2-Siloxycyclopropanecarboxylates: Simple Syntheses of Functionalized Nitriles and Alkynes
摘要:
Starting from methyl 2-siloxycyclopropanecarboxylates simple and efficient one-pot procedures are described that lead to beta-cyanoesters and methoxycarbonyl-substituted terminal alkynes. The prepared functionalized alkynes were subjected to typical transformations such as [3+2] cycloaddition providing triazole derivatives, Sonogashira coupling, Au-catalyzed hydrophosphorylation or a copper-catalyzed coupling of methyl diazoacetate furnishing alkyne 14 and allene derivative 15. The Pauson-Khand reaction of the enyne 4c afforded a diastereomeric mixture of methyl 5-oxohexahydropentalen-2-carboxylate 16 in moderate yield.
VICINAL PRIMARY DIAMINES ASSOCIATED WITH METAL AND/OR FREE RADICAL CHELATION MOTIFS, AND ACTIVE AGAINST CARBONYL AND OXIDATIVE STRESS, AND USE THEREOF
申请人:UNIVERSITE AMIENS PICARDIE JULES VERNE
公开号:US20180201602A1
公开(公告)日:2018-07-19
The invention relates to compounds of Formula I:
or the salts thereof, as well as the use thereof in the pharmaceutical, cosmetic or agrofood industry.
该发明涉及公式I的化合物:或其盐,以及在制药、化妆品或农业食品工业中的使用。
Synthesis of β-Cyano Ketones Promoted by a Heterogeneous Fluoride Catalyst