121077-61-0
(E)-diethyl (4-hydroxy-2-buten-1-yl)phosphonate
→
~70%
110905-37-8
(E)-4-diethoxyphosphorylbut-2-enal
915100-96-8
~68%
1606-75-3
(甲酰基甲基)磷酸二乙酯
+
2136-75-6
甲酰甲撑基三苯基磷
~28%