Advantage of in situ generation of N-arylsulfonyl imines from α-amide sulfones in the phase-transfer-catalyzed asymmetric Strecker reaction
作者:Takashi Ooi、Yukitaka Uematsu、Jun Fujimoto、Kazuhiro Fukumoto、Keiji Maruoka
DOI:10.1016/j.tetlet.2006.12.122
日期:2007.2
Highly efficient, catalytic enantioselective synthesis of N-arylsulfonyl α-amino nitriles from the corresponding α-amido sulfones has been achieved under toluene–aqueous potassium cyanide biphasic conditions using chiral quaternary ammonium iodide (R,R,R)-1 as an effective phase-transfer catalyst. This Strecker synthesis involving the in situ generation of the reactive N-sulfonyl imines is advantageous
在甲苯-氰化钾水溶液双相条件下,使用手性季铵碘化铵(R,R,R)-1作为有效相,已经可以从相应的α-酰胺基砜高效催化对映选择性地合成N-芳基磺酰基α-氨基腈。-转移催化剂。涉及原位生成反应性N-磺酰基亚胺的这种Strecker合成方法对于具有伯和仲烷基取代基的底物的氰化是有利的。