Assembly of 5H-dibenzo[a,d]cycloheptenes by a formal [5 + 2] annulation of ortho-aryl alkynyl benzyl alcohols with arenes

Zhebing Zhang,Tao Cai, Zhaohui Zhan,Huiting Xu,Lemao Yu,Xiang Luo,Chunmei Li,Yuzhen Gao,Xuemei Wei,Xinzhi Chen,Runpu Shen

Organic & Biomolecular Chemistry（2022）

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Abstract

We developed a protocol for the preparation of valuable 5H-dibenzo[a,d]cycloheptenes by a formal [5 + 2] annulation of ortho-aryl alkynyl benzyl alcohols with arenes. Structurally diverse 5H-dibenzo[a,d]cycloheptenes were achieved in moderate to good yields.

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