作者:Eli Breuer、Dov M. Bannet
DOI:10.1016/0040-4020(78)88154-x
日期:1978.1
The preparation and the use in olefin synthesis of two 5-membered cyclic phosphonates, 2-carbethoxy-methyl 4,5-dimethyle-2-oxo-1,3,2-dioxaphospholane (4b) and 2-cyanomethyl-4,5-dimethyl-2-oxo-1,3,2-diox-aphospholane (4c) and the 6-membered phosphonates, 2-carbalkoxymethyl-5,5-dimethyl-2-oxo-1,3,2-diox-aphosphorinanes (5a and 5b) and 2-cyanomethyl-5,5-dimethyl-2-oxo-1,3,2-dioxaphosphorinane (5c) are
两种5元环状膦酸酯的制备及其在烯烃合成中的用途:2-碳乙氧基-甲基4,5-二甲基--2-氧代-1,3,2-二氧杂膦酸酯(4b)和2-氰基甲基-4,5-二甲基-2-氧代-1,3,2-二氧-磷杂环戊烷(4c)和6元膦酸酯,2-carbalkoxymethyl-5,5-methyldimethyl-2-oxo-1,3,2-diox-aphosphorinanes(5a描述了图5a和图5b)和2-氰基甲基-5,5-二甲基-2-氧代-1,3,2-二氧杂磷烷基(5c)。4b与芳族和脂族醛的反应导致优先形成顺式烯烃。其他环状膦酸酯与醛的反应导致顺式和反式的各种混合物 烯烃。