Controlled and Chemoselective Reduction of Secondary Amides
作者:Guillaume Pelletier、William S. Bechara、André B. Charette
DOI:10.1021/ja105194s
日期:2010.9.22
presence of 2-fluoropyridine. The electrophilic activated amide can then be reduced to the corresponding iminium using triethylsilane, a cheap, rather inert, and commercially availablereagent. Imines can be isolated after a basic workup or readily transformed to the aldehydes following an acidic workup. The amine moiety can be accessed via a sequential reductive amination by the addition of silane and
[EN] THERMOPLASTIC POLYMER COMPOSITION<br/>[FR] COMPOSITION DE POLYMÈRE THERMOPLASTIQUE
申请人:MILLIKEN & CO
公开号:WO2015042561A1
公开(公告)日:2015-03-26
The invention provides a thermoplastic polymer composition comprising a polyolefin polymer and a nucleating agent. The nucleating agent comprises a compound conforming to the structure of Formula (I). The invention also provides a series of compounds encompassed by the structure of Formula (I).
Chemoselective synthesis of ketones and ketimines by addition of organometallic reagents to secondary amides
作者:William S. Bechara、Guillaume Pelletier、André B. Charette
DOI:10.1038/nchem.1268
日期:2012.3
is of great importance, as this motif serves as a synthetic handle for the elaboration of numerous organic functionalities. In this context, we report a general and chemoselective method based on an activation/addition sequence on secondaryamides allowing the controlled isolation of structurally diverse ketones and ketimines. The generation of a highly electrophilic imidoyl triflate intermediate was
Metal-Free Intermolecular Coupling of Arenes with Secondary Amides: Chemoselective Synthesis of Aromatic Ketimines and Ketones, and <i>N</i>-Deacylation of Secondary Amides
作者:Pei-Qiang Huang、Ying-Hong Huang、Kai-Jiong Xiao
DOI:10.1021/acs.joc.6b01647
日期:2016.10.7
The direct transformation of common secondary amides into aromatic ketimines and aromatic ketones with C–C bond formation is described. The reaction can also be used for N-deacylation of secondary amides to release amines. This method consists of in situ amide activation with triflic anhydride and intermolecular capture of the resulting highly electrophilic nitrilium intermediate with an arene. The
A one-pot reaction for the transformation of common secondaryamides into amines with C–C bond formation is described. This method consists of in situ amide activation with Tf2O–partial reduction–addition of C-nucleophiles. The method is general in scope, which allows employing both hard nucleophiles (RMgX, RLi) and soft nucleophiles, as well as enolates. With the use of soft nucleophiles, the reaction