作者:A. Yu. Raley、N. A. Keiko、M. G. Poronkov
DOI:10.1007/bf01433745
日期:1996.1
Reactions of 2-halo-2-alkenals R″(R′)C=CX-CHO with secondary amines R2NH occur asipso-substitution of the halogen atom, along with fragmentation and condensation, yielding 1,2-diaminoethenes R2NCH=CHNR2, carbonyl compounds R″C(O)R′, 1,3-bis(amino)-2-haloolefins R″(R′)C(NR2)CX=CHNR2, and formamides R2NCHO. The ratio between the competing reactions depends on the structure of the starting compounds and
2-halo-2-alkenals R″(R')C=CX-CHO 与仲胺 R2NH 的反应发生卤原子的同位取代,以及裂解和缩合,产生 1,2-二氨基乙烯 R2NCH=CHNR2,羰基化合物 R"C(O)R'、1,3-双(氨基)-2-卤代烯烃 R"(R')C(NR2)CX=CHNR2 和甲酰胺 R2NCHO。竞争反应之间的比率取决于起始化合物的结构和实验条件。