Aerobic oxidation/metal-free cyclization cascades of nitrosoarenes, allenynes with TEMPO/O2: A switch of diradical to single radical intermediates

Rai‐Shung Liu,Chandrima Maitra,Debashis Barik,Yeu-Shiuan Ho,Mu‐Jeng Cheng

Organic chemistry frontiers（2023）

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摘要

A four-component oxidative cyclization among allenyne, nitrosoarene and TEMPO/O 2 is reported herein. The catalyst- and additive-free cascade cyclization shows a switch from a diradical to single radical mechanism by TEMPO interception.

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关键词

nitrosoarenes,aerobic oxidation/metal-free,allenynes

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