conditions. When this reaction was applied to dithiocarbamates ArN(R)CS2Me at higher temperatures, the trifluoromethylation was accompanied by halogen substitution at the p-position of the Ar group. The synthesis of trifluoromethyl-substituted adenosine is also described.
三氟甲胺很容易从二硫代氨基甲酸酯通过由四丁基二氢三氟化铵和 N-卤代酰亚胺组成的试剂系统在温和条件下合成。当该反应在较高温度下应用于二硫代氨基甲酸酯 ArN(R)CS2Me 时,三氟甲基化伴随着 Ar 基团对位的卤素取代。还描述了三氟甲基取代的腺苷的合成。
Reaction of Thiocarbonyl Fluoride Generated from Difluorocarbene with Amines
作者:Jiao Yu、Jin-Hong Lin、Ji-Chang Xiao
DOI:10.1002/anie.201710186
日期:2017.12.22
The reaction of thiocarbonyl fluoride, generated from difluorocarbene, with various amines under mild conditions is described. Secondary amines, primary amines, and o‐phenylenediamines are converted to thiocarbamoyl fluorides, isothiocyanates, and difluoromethylthiolated heterocycles, respectively. Thiocarbamoyl fluorides were further transformed into trifluoromethylated amines by using a one‐pot process
Reported herein is the one‐pot synthesis of trifluoromethylated amines at room temperature using the bench‐stable (Me4N)SCF3 reagent and AgF. The method is rapid, operationally simple and highly selective. It proceeds via a formal umpolung reaction of the SCF3 with the amine, giving quantitative formation of thiocarbamoyl fluoride intermediates within minutes that can readily be transformed to N‐CF3
CF<sub>3</sub> Oxonium Salts, <i>O</i>-(Trifluoromethyl)dibenzofuranium Salts: In Situ Synthesis, Properties, and Application as a Real CF<sub>3</sub><sup>+</sup> Species Reagent
作者:Teruo Umemoto、Kenji Adachi、Sumi Ishihara
DOI:10.1021/jo070896r
日期:2007.8.31
We report in situ synthesis of the first CF3 oxonium salts, thermally unstable O-(trifluoromethyl)dibenzofuranium salts, which furthermore have different counteranions (BF4-, PF6-, SbF6-, and Sb2F11-) and ring substituents (tert-butyl, F, and OCH3), by photochemical decomposition of the corresponding 2-(trifluoromethoxy)biphenylyl-2‘-diazonium salts at −90 to −100 °C. The yields markedly increased in
Benzoyl-piperidine derivatives as dual modulators of the 5-HT2A and D3 receptors
申请人:Gobbi Luca
公开号:US20070197531A1
公开(公告)日:2007-08-23
The present invention relates to compounds of the general formula
as dual modulators of the 5-HT
2a
and D
3
receptors useful against CNS disorders, wherein A, R
1
, R
2
, n, p, q and r are as defined in the specification.