作者:Bongjin Moon、Sangbae Han、Dohyung Kim
DOI:10.1021/ol051270v
日期:2005.7.1
[reaction: see text]. Simple condensation reactions of various alpha,beta-epoxy or alpha,beta-aziridinyl methyl esters with 1,1-dialkyl hydrazines provided cyclic aminimides (1,1-dialkyl-3-oxopyrazolidines) with a heteroatom substituent at the 4-position in good yields. The reaction proceeds smoothly, without any coreagent, providing the product as an easily isolable precipitate. The reaction is expected
[反应:请参见文字]。各种α,β-环氧或α,β-叠氮基甲基酯与1,1-二烷基肼的简单缩合反应可提供环状氨基胺(1,1-二烷基-3-氧杂唑烷),在4位具有杂原子取代基产量。反应平稳进行,没有任何核心试剂,提供了易于分离的沉淀产物。预期该反应将是高度官能化的五元环骨架的组合合成的良好候选者。通过改变取代基R(1)-R(5),研究了该反应的范围和局限性。