Synthesis 2021; 53(17): 3029-3036
DOI: 10.1055/a-1416-6997
special topic
Bond Activation – in Honor of Prof. Shinji Murai

Synthesis of Benzo-Fused Cyclic Compounds via Rhodium-Catalyzed Decarboxylative Coupling of Aromatic Carboxylic Acids with Alkynes

Yasuhito Inai
,
Yoshinosuke Usuki
,
Tetsuya Satoh
This work was partly supported by the Japan Society for the Promotion of Science (JSPS) (KAKENHI) (Grant Nos. 20H02745 and 18K19083), and by Osaka City University (OCU) Strategic Research Grant 2020 for basic research to T.S. and the JSPS (KAKENHI) (Grant No. 18H04627) to Y.U.


Abstract

The decarboxylative coupling of diversely substituted benzoic acids with internal alkynes proceeds smoothly in the presence of a [RhCl(cod)]2/1,2,3,4-tetraphenyl-1,3-cyclopentadiene catalyst system to selectively produce highly substituted naphthalene derivatives. The catalyst system is applicable to constructing anthracene and benzo­[c]thiophene frameworks through reactions of naphthoic and thiophene-2-carboxylic acids, respectively.

Supporting Information



Publication History

Received: 17 February 2021

Accepted after revision: 08 March 2021

Accepted Manuscript online:
08 March 2021

Article published online:
01 April 2021

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