α-Ethynylation reaction of ketones using catalytic amounts of trialkylgallium base
摘要:
Trialkylgalliums serve as a base to generate enolates from ketones. In the presence of catalytic amounts of a trialkylgallium (20-40 mol %) and 2,6-di(t-butyl)-4-methylpyridine (30-50 mol%), acyclic, and cyclic ketones were ethynylated at the alpha-carbon with chlorosilylethyne. The selective monoethynylation and diethynylation could be conducted for cyclic ketones by appropriate choices of the conditions, in which the addition of a catalytic amount of butyllithium (20-40 mol %) increased the yield. (c) 2006 Elsevier Ltd. All rights reserved.
The present disclosure provides methods to produce ketones suitable for use as fuels and lubricants by catalytic conversion of an acetone-butanol-ethanol (ABE) fermentation product mixture that can be derived from biomass.
US9790444B2
申请人:——
公开号:US9790444B2
公开(公告)日:2017-10-17
US9856427B2
申请人:——
公开号:US9856427B2
公开(公告)日:2018-01-02
[EN] METHOD TO CONVERT FERMENTATION MIXTURE INTO FUELS<br/>[FR] PROCÉDÉ POUR CONVERTIR UN MÉLANGE DE FERMENTATION EN COMBUSTIBLES
申请人:UNIV CALIFORNIA
公开号:WO2012166267A2
公开(公告)日:2012-12-06
The present disclosure provides methods to produce ketones suitable for use as fuels and lubricants by catalytic conversion of an acetone-butanol-ethanol (ABE) fermentation product mixture that can be derived from biomass.