Rhodium-catalysed cyclic carbonylation of 2-alkynylphenols: synthesis of benzofuranones and coumarins

…, T Sugioka, K Hirao, SW Zhang, S Takahashi

文献索引：Yoneda, Eiji; Sugioka, Takashi; Hirao, Kojiro; Zhahg, Shi-Wei; Takahashi, Shigetoshi Journal of the Chemical Society - Perkin Transactions 1, 1998 , # 3 p. 477 - 483

全文：HTML全文

被引用次数: 47

摘要

Rhodium-catalysed carbonylation of 2-alkynylphenols 1 under water-gas shift reaction conditions gives benzofuranone derivatives 2 and coumarin derivatives 3 in high yield (up to 96%, 2∶ 3= 65∶ 35), in which the hydroxy group adjacent to the carbon–carbon triple bond participitates in the cyclic carbonylation.

~43%

~25%

详细

~24%

Switching reaction pathways of benzo [b] thiophen-3-yllithiu...

[Asai, Tatsuro; Takata, Atsushi; Ushiogi, Yousuke; Iinuma, Yoshiharu; Nagaki, Aiichiro; Yoshida, Jun-Ichi Chemistry Letters, 2011 , vol. 40, # 4 p. 393 - 395]