Reaction of dimethyl 2-methyl- and dimethyl 2-phenyl-4-oxo-4H-chromen-3-yl-phosphonate with amines
作者:Budzisz Elż、Pastuszko Slawomir
DOI:10.1016/s0040-4020(99)00153-2
日期:1999.4
The reaction of dimethyl 2-methyl- and dimethyl 2-phenyl-4-oxo-4H-chromen-3-yl-phosphonate with various aliphatic and aromatic amines was investigated. A novel class of cyclic phosphonic analogues of chromone, 1 (2-methoxy-3-[1-(alkylamino)ethylidene or benzylidene]-2,3-dihydro-2,4-dioxo-2λ5-benzo[e]-[1,2]oxaphosphinane), was obtained when primary amines were used as nucleophiles. An analogous reaction
研究了2-甲基-4-甲基和2-苯基-4-氧基-2-甲基H-铬-3-基-膦酸二甲酯与各种脂族和芳族胺的反应。一类新的色酮,的环状膦类似物1(2-甲氧基-3- [1-(烷基氨基)亚乙基或亚苄基] -2,3-二氢-2,4-二氧代-2- λ 5 -苯并[e] -亚当伯胺用作亲核试剂时,可得到[1,2]氧杂膦烷。与芳族或仲胺的类似反应导致膦酸残基中一个甲酯基的水解。