Diels-alder reaction of chiral dienes. Remarkable effect of dienophile polarity upon diastereo face selectivity
作者:Tatsuo Hamada、Hiroki Sato、Masataka Hikota、Osamu Yonemitsu
DOI:10.1016/s0040-4039(01)93907-3
日期:1989.1
Face selectivity of Diels-Alder reaction of diene having the stereogenic center at allylic position depends on dienophile polarity, and hetero Diels-Alder reaction with dienophile such as N-tosylimine and N-tosylsulfinylimine was found to give exclusively ul product. The reaction mechanism and empirical rule of the face selectivity of these reactions are discussed.
在烯丙基位置具有立体异构中心的二烯的Diels-Alder反应的表面选择性取决于亲二烯体的极性,并且发现与亲二烯体的异Diels-Alder反应例如N-甲苯磺胺和N-甲苯磺酰亚氨嘧啶仅产生ul产物。讨论了这些反应的面选择性的反应机理和经验规律。