Palladium-Catalyzed Aminoallylation of Activated Olefins with Allylic Halides and Phthalimide
作者:Kouichi Aoyagi、Hiroyuki Nakamura、Yoshinori Yamamoto
DOI:10.1021/jo025747h
日期:2002.8.1
The three-component aminoallylation reaction of the activated olefins 2 with the phthalimide 1a and allyl chloride proceeded very smoothly in the presence of Pd(2)dba(3).CHCl(3) (5 mol %)/P(4-FC(6)H(4))(3) (40 mol %) and Cs(2)CO(3) (3 equiv against 2) in dichloromethane at room temperature to give the corresponding aminoallylated products, N-pent-4-enylphthalimides 3, in 58-99% yields. The reaction
在Pd(2)dba(3).CHCl(3)(5 mol%)/ P(4-FC(3)(Pd(2)dba(3))的存在下,活化烯烃2与邻苯二甲酰亚胺1a和烯丙基氯的三组分氨基烯丙基化反应进行得非常顺利。在室温下于二氯甲烷中加入6)H(4))(3)(40 mol%)和Cs(2)CO(3)(3当量,相对于2当量),得到相应的氨基烯丙基化产物N-戊-4-烯基邻苯二甲酰亚胺3 ,产率58-99%。恶唑烷酮1b的反应也进行得非常顺利,以定量收率得到N-(2,2-二氰基-1-苯基戊-4-烯基)恶唑烷酮。但是,在二苄基胺,N-甲苯磺酰苯胺和吡咯烷基-2-酮的情况下,获得了Tsuji-Trost型烯丙基化产物4。此外,2在Pd(2)dba(3).CHCl(3)(5 mol%)/ P(4-FC(6)H(4))(3)的存在下与N-甲苯磺酰基乙烯基氮丙啶9a环加成(在室温下在THF中40 mol%)