Lin XJ, Wang CL, Peng CH, Liu HJ, Wu YK. A Concise Route to Keto-Bridged Polyphenols by Photo-Fries Rearrangement in Flow.
Chem Asian J 2024;
19:e202400269. [PMID:
38619083 DOI:
10.1002/asia.202400269]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 04/13/2024] [Accepted: 04/15/2024] [Indexed: 04/16/2024]
Abstract
Described is a new synthetic route to bis(2-hydroxy-3,5-di-t-butylphenyl)methanone and its derivatives. The combined esterification/photo-Fries rearrangement approach enables a modular preparation of keto-bridged polyphenols. This protecting group-free process is highly atom- and step-economic, and a scalable production was easily achieved in the continuous-flow mode.
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