Rhodium-catalysed reactions of 2-amino-N-alkenylbenzylamines with H2/CO give hexahydro-pyrrolo- and hexahydropyrido -[2,1-b] quinazolines. Reactions of N-allyl derivatives give a single regioisomer, and reactions of but-3-enyl analogues give mixtures of pyrrolo and pyrido derivatives. Some reactions give significant amounts (10-30%) of tetrahydro derivatives. The origin of these compounds remains unclear.
铑催化 2-
氨基-N-烯基
苄胺与 H2/CO 的反应生成六氢
吡咯并六氢
吡啶并[2,1-b]
喹唑啉。与 N-烯丙基衍
生物反应会产生单一的区域异构体,而与丁-3-烯基类似物反应则会产生
吡咯和
吡啶衍生物的混合物。有些反应会产生大量(10-30%)四氢衍
生物。这些化合物的来源仍不清楚。