Rearrangements of Internally‐bridged Octaphyrin(1.1.1.1.1.1.1.1)s to Porphyrin Dimers

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作   者：

Akito Nakai;  Takayuki Tanaka;  Atsuhiro Osuka; 

作者机构：

Kyoto University; 

关键词：

Homoporphyrin;  Transannular Reaction;  Expanded Porphyrin;  Rearrangement; 

期刊名称：

Angewandte Chemie

i s s n：

1433-7851

年卷期：

2023 年 62 卷 28 期

页   码：

n/a-n/a

页   码：

摘   要：

Abstract Internally‐bridged octaphyrin(1.1.1.1.1.1.1.1) underwent a rearrangement to meso‐meso linked porphyrin dimer as a new metamorphosis. Extensive examination suggests that hydride‐addition is a key step for the rearrangements to afford thermodynamically more stable porphyrin framework. Further, β‐tetrabromo[36]octaphyrin was transformed to meso‐meso, β‐β, β‐β triply linked porphyrin dimer via a similar mechanism combined with Pd‐mediated reductive homocoupling.