80472-52-2Relevant academic research and scientific papers
Synthesis of substituted coumarins via Bronsted acid mediated condensation of allenes with substituted phenols or anisoles
Kim, Sundae,Kang, Dongjin,Lee, Chang-Hee,Lee, Phil Ho
experimental part, p. 6530 - 6537 (2012/10/08)
Coumarins were obtained from the condensation of electron-rich arenes with allenes in the presence of TfOH in good yield. Depending on the substituent pattern of allenes employed, the general synthetic method of 4-substituted and 3,4-disubstituted 3-arylc
