Photocycloaddition of 3-methoxy-N-methyl-phthalimide to n-hexene results in the formation of 8-butyl-N-methyl-6-methoxy bicyclo[2,2,2]octa-2,5-diene-1,2-carboximide and 6-butyl-N-methyl-3-methoxy bicyclo[4,2,0]octa-2,7-diene-1,2-dicarboximide through regioselective para and ortho-cycloadditions respectively.
3-甲氧基-N-甲基邻苯二甲
酰亚胺与
正己烯的光环加成导致形成8-丁基-N-甲基-6-甲氧基双环[2,2,2] octa-2,5-diene-1,2 -羧
酰亚胺和6-丁基-N-甲基-3-甲氧基双环[4,2,0]八-2,7-二烯-1,2-二
羧酸二
酰亚胺分别通过区域选择性的对位和邻位环加成。