作者:M. Peled、D. Ginsburg
DOI:10.1016/s0040-4020(01)97729-4
日期:1981.1
In tetraenic propellane imides substituted at the imide nitrogen atom by relatively large groups both syn and anti-attack occurs when N-phenyltriazolinedione is used as dienophile. However, in formation of the mono-Diels-Alder adducts the unsubstituted cyclohexadiene ring is the one attacked and the bromocyclohexadiene ring is attacked only later, during formation of bis-adducts.
在将N-苯基三唑啉二酮用作亲二烯物时,在酰亚胺氮原子上被较大的基团取代的四烯丙基丙二酰亚胺中,反式和反式均会发生。然而,在单-Diels-Alder加合物的形成中,未取代的环己二烯环是一个被攻击的,而溴环己二烯环仅在后来形成双-加合物的过程中被攻击。