Synthesis of Highly Functionalized Phosphorus Ylids Containing Heterocyclic Rings and the Related Iminophosphoranes
作者:Hojatollah Khabazzadeh、Kazem Saidi、Hassan Sheibani、Mohammad Reza Islami
DOI:10.1080/10426500701407482
日期:2007.7.19
Crystalline phosphorus ylides are obtained in excellent yields from the 1:1:1 addition reaction between triphenylphosphine, dimethyl acetylenedicarboxylate (DMAD) and NH and SH acids, such as 2-amino-4-phenyl thiazole, 2-amino-5-(3-chloro-benzyl) thiadiazole, 3-amino-2-methyl quinazolin-4-one and 3-amino-2-mercapto quinazolin-4-one. These stabilized phosphoranes undergo a smooth intramolecular reaction
通过
三苯基膦、
乙炔二
甲酸二甲酯 (
DMAD) 与 NH 和 SH 酸(如
2-氨基-4-苯基噻唑、2-
氨基-5-(3 -
氯-苄基)
噻二唑、3-
氨基-
2-甲基喹唑啉-4-one和3-
氨基-2-巯基
喹唑啉-4-one。这些稳定的正膦在沸腾的
甲苯中进行平稳的分子内反应,以优异的产率生产芳基亚
氨基正膦。