5-(3-叠氮基苯基)-1-(1 H-吡咯-3-基)吡咯的酸催化分解未得到预期的二吡咯并[2,1- a:3,4- c ]异喹啉衍生物,但呈平面状双吡咯并[2,1- a:3,2- c ]异喹啉衍生物和相关的非平面衍生物11b H-双吡咯并[2,1- a:3,2- c ]异喹啉衍生物。在强酸介质(三氟甲磺酸)中,α-(1-吡咯-3基)位置即使被封闭,相对于游离β1而言也更容易发生环化。尽管存在位阻,但根据1-(1)上取代基的性质和位置,可以以中等到良好的总收率获得这些化合物H-吡咯基)部分。
[EN] CATALYSTS CONTAINING N-PYRROLYL SUBSTITUTED NITROGEN DONORS<br/>[FR] CATALYSEURS CONTENANT DES DONNEURS D'AZOTE SUBSTITUES PAR N-PYRROLYLE
申请人:EASTMAN CHEM CO
公开号:WO2000050470A2
公开(公告)日:2000-08-31
Catalyst compositions useful for the polymerization or oligomerization of olefins are disclosed. Certain of the catalyst compositions comprise N-pyrrolyl substituted nitrogen donors. Also disclosed are processes for the polymerization or oligomerization of olefins using the catalyst compositions.
[EN] CATALYSTS CONTAINING N-PYRROLYL SUBSTITUTED NITROGEN DONORS<br/>[FR] CATALYSEURS CONTENANT DES DONNEURS D'AZOTE A SUBSTITUANTS N-PYRROLYLE
申请人:EASTMAN CHEM CO
公开号:WO2001083571A2
公开(公告)日:2001-11-08
Catalyst compositions useful for the polymerization or oligomerization of olefins are disclosed. Certain of the catalyst compositions comprise N-pyrrolyl substituted nitrogen donors. Also disclosed are processes for the polymerization or oligomerization of olefins using the catalyst compositions.