作者:Stefano Menichetti、Caterina Viglianisi
DOI:10.1016/s0040-4020(03)00811-1
日期:2003.7
Under kinetic control, the reaction of o-thioquinones with acyclic 1,3-dienes afforded, as main products, the spiro cycloadducts deriving from the participation of the thiones as dienophiles. Under thermodynamic control, or with cyclic dienes, the thioquinones behave as hetero dienes to give the benzoxathiin derivatives with complete regioselectivity.
在动力学控制下,邻硫醌与无环1,3-二烯的反应作为主要产物提供了由硫酮作为亲二烯体的参与而形成的螺环加合物。在热力学控制下,或在环状二烯的作用下,硫醌具有杂二烯的作用,从而使苯并黄嘌呤衍生物具有完全的区域选择性。