作者:W.-D. Rudorf
DOI:10.1016/0040-4020(80)80076-7
日期:1980.1
The ketene S,S-acetals 1 readily react with aziridine to give the corresponding 3-(1-aziridinyl)-3-methylthio-acrylnitriles 2 and 3,3-bis-(1-aziridinyl)-acrylnitriles 3. Ketene S,N-acetals 4 yield 3-anilino-3-(1-aziridinyl)-acrylnitriles 5. Reaction of 5 with potassium iodide in acetone at room temperature leads to imidazolidines 8. The isomerisation is explained in terms of a two-step mechanism. The
乙烯酮S,S-乙缩醛1容易与氮丙啶反应,得到相应的3-(1-氮丙啶基)-3-甲硫基丙烯腈2和3,3-双-(1-氮丙啶基)-丙烯腈3。酮S,N-乙缩醛4产生3-苯胺基-3-(1-叠氮基)-丙烯腈5。的反应5与碘化钾在丙酮中在室温下导致咪唑烷8。异构化用两步机理来解释。当应用于2a时,碘离子催化的重排不成功。环化图5b中,在氢化钠的存在下与以下水解形式互变异构喹诺酮10。与1和4相反,巯基乙烯11和13与氮丙啶形成噻唑烷15。