Direct vinylation and ethynylation of nitrones. Stereodivergent synthesis of allyl and propargyl amines
作者:Pedro Merino、Sonia Anoro、Elena Castillo、Francisco Merchan、Tomas Tejero
DOI:10.1016/0957-4166(96)00222-4
日期:1996.7
The addition of vinyl and ethynyl organometallic reagents to the nitrone derived from D-glyceraldehyde affords allyl and propargyl hydroxylamines which are easily converted into the corresponding allyl and propargyl amines. The stereoselectivity of the addition step can be controlled by the presence (or absence) of diethyl aluminium chloride.
将
乙烯基和
乙炔基有机
金属试剂加到衍生自D-
甘油醛的硝酮中得到烯丙基和炔丙基
羟胺,它们很容易转化为相应的烯丙基和
炔丙基胺。加成步骤的立体选择性可以通过
二乙基氯化铝的存在(或不存在)来控制。