Highly Efficient Synthesis of Stereodefined Multisubstituted 1,4-Dicyano- and 1-Cyano-1,3-butadienes and Their Reactions with Organolithium Reagents
作者:Congyang Wang、Chao Wang、Qifeng Wang、Zhihui Wang、Hui Sun、Xiangyu Guo、Zhenfeng Xi
DOI:10.1002/chem.200700028
日期:2007.7.27
1-cyano-4-halo-1,3-butadienes and organolithiumreagents. When 1,4-dicyano-1,3-butadienes were treated with organolithiumreagents followed by trapping with electrophiles, a tandem process took place to afford 2H-pyrrolyl nitriles in excellent yields. Reduction of 1,4-dicyano-1,3-butadiene derivatives with LiAlH4 showed novel reaction patterns relative to normal nitriles.