Reactions of 2-( allyloxy ) benzylamines with H2/CO in the presence of rhodium catalysts give 1,3-benzoxazines, and 2-(N- allyl-N-benzylamino ) benzylamine gives a quinazoline . These reactions have been shown to involve allylic cleavage followed by regioselective carbonylation at the internal carbon atom as demonstrated by crossover experiments. Reactions of longer chain ( alkenyloxy ) benzylamines under similar conditions give polymeric material.
在铑催化剂存在下,2-(烯丙氧基)苄胺与 H2/CO 反应生成 1,3-苯并噁嗪,2-(N-烯丙基-N-苄基氨基)苄胺生成喹唑啉。交叉实验证明,这些反应涉及烯丙基裂解,然后在内部碳原子进行区域选择性羰基化。在类似条件下,较长链的(烯氧基)苄胺发生反应,生成聚合物质。