Reactions of bromotrifluoromethane with acid derivatives in the presence of zinc
作者:C. Francèse、M. Tordeux、C. Wakselman
DOI:10.1016/0040-4039(88)85326-7
日期:1988.1
Reaction of zinc with bromotrifluoromethane in pyridine gives poorly reactive trifluoromethyl zinc derivatives in the presence of ethyl benzoate whereas the Barbier condensation occurs with activated esters, like ethyl trifluoroacetate or ethyloxalate, and cyclic anhydrides.
Trifluoromethylation of carbonyl compounds with sodium trifluoroacetate
作者:Ying Chang、Chun Cai
DOI:10.1016/j.jfluchem.2005.04.012
日期:2005.6
In the presence of copper(I) iodide as catalyst, a variety of carbonylcompounds, such as aldehydes, ketones and acid anhydrous, could be trifluoromethylated with sodium trifluoroacetate to give the corresponding alcohols in moderate to high yields, and a possible mechanism was proposed to explain the roles of catalyst and solvent in the reaction system.
Tandem Asymmetric Cycloaromatization/ Intramolecular Pictet‐Spengler‐Type Reaction. An Entry to Polycyclic Pyrroles
作者:Daniel Gaviña、Marcos Escolano、Fernando Rabasa‐Alcañiz、Santiago Díaz‐Oltra、María Sánchez‐Roselló、Carlos del Pozo
DOI:10.1002/adsc.202200399
日期:2022.9.6
The asymmetricsynthesis of tetracyclic pyrroles bearing a tetrasubstitutedcarbonstereocenter has been accomplished through a one-pot sequence that comprises a cross metathesis reaction followed by a tandem cycloisomerization/ intramolecular Pictet-Spengler-type reaction. This sequence took place on conveniently functionalized chiral amino acids to render the final products in good overall yields
Fluoride-catalyzed nucleophilic trifluoromethylation of acid anhydrides using CF3SiMe3 provided the corresponding gamma-hydroxy-gamma-trifluoromethyl-gamma-butyrolactones. The utility of these adducts was further demonstrated by treatment with Grignard reagents, leading to gamma-trifluoromethylated gamma-butyrolactones. (C) 2013 Elsevier B.V. All rights reserved.
Tordeux, Marc; Francese, Catherine; Wakselman, Claude, Journal of the Chemical Society. Perkin transactions I, 1990, # 7, p. 1951 - 1957
作者:Tordeux, Marc、Francese, Catherine、Wakselman, Claude