コンテンツへスキップ
Merck
  • Lack of correlation between catalytic efficiency and basicity of amines during the reaction of aryl methyl ketones with DMF-DMA: an unprecedented supramolecular domino catalysis.

Lack of correlation between catalytic efficiency and basicity of amines during the reaction of aryl methyl ketones with DMF-DMA: an unprecedented supramolecular domino catalysis.

Organic & biomolecular chemistry (2011-11-08)
Anirban Sarkar, Sudipta Raha Roy, Dinesh Kumar, Chetna Madaan, Santosh Rudrawar, Asit K Chakraborti
要旨

1-Methylimidazole exhibits an unusually high efficiency in promoting the reaction of aryl methyl ketones with DMF-DMA to form (2E)-1-aryl-3-dimethylamino-2-propenones which lacks correlation between the catalytic efficiency and the basicity of 1-methylimidazole in comparison to other amines. An unprecedented supramolecular domino catalysis rationalises the lack of correlation between the catalytic efficiency and basicity of the amines. The supramolecular assemblies have been characterized by mass-spectrometric ion fishing. The time-dependent increase/decrease in the concentration (ion current) of the supramolecular species consolidated the mechanism.

材料
製品番号
ブランド
製品内容

Sigma-Aldrich
N,N-ジメチルホルムアミドジメチルアセタール, technical grade, 94%
カタログ番号
容量
在庫状況
単価
数量
Supelco
N,N-ジメチルホルムアミドジメチルアセタール, for GC derivatization, LiChropur
カタログ番号
容量
在庫状況
単価
数量