Selected Reactions of Diethyl (<i>E</i>)-1-(bromomethyl)-2-cyanovinylphosphonate with Secondary and Tertiary Amines
作者:Asma Fray、Jihène Ben Kraïem、Hassen Amri
DOI:10.1002/hc.21112
日期:2013.11
An easy regio- and stereoselective synthesis of new nitrogenous molecules 2a–e was successfully realized via an effective coupling reaction of diethyl (E)-1-(bromomethyl)-2-cyanovinylphosphonate 1 with various secondary amines in methanol. Hence, the use of less and more bulky secondary amines gives rise, respectively, to the successive (SN2′) substitution–isomerization and (SN2) substitution derivatives