Cu-catalyzed debrominative cyanation of gem-dibromoolefins: a facile access to α,β-unsaturated nitriles
作者:Brij Bhushan Ahuja、Arumugam Sudalai
DOI:10.1039/c5ob00394f
日期:——
of α,β-unsaturated nitriles from easily accessible gem-dibromoolefins has been developed. The method utilized inexpensive reagents such as Cu2O as a catalyst, L-proline as a ligand and NaCN as a cyanide source to afford α,β-unsaturated nitriles in high yields (62–86%). A deuterium exchange study has shown that one of the bromide atoms of gem-dibromoolefins exchanges with cyanide while the other with
已经开发了从容易获得的宝石-二溴代烯烃合成α,β-不饱和腈的有效催化途径。该方法利用廉价的试剂,例如Cu 2 O作为催化剂,L-脯氨酸作为配体,NaCN作为氰化物源,以高收率(62-86%)提供α,β-不饱和腈。氘交换研究表明,宝石-二溴烯烃中的一个溴原子与氰化物交换,而另一个与氘原子交换。