Claisen rearrangement of aryl propargyl ethers in poly(ethylene glycol)- a remarkable substituent and solvent effect
作者:Usha Roa、K.K. Balasubramanian
DOI:10.1016/s0040-4039(01)99839-9
日期:1983.1
The Claisen rearrangement of aryl propargyl ethers in poly(ethylene glycol) - 200 at 200°C affords products in good yields. Aryl propargyl ethers containing electron donating groups yield (2H)-benzopyrans and those containing electron withdrawing groups yield 2-methylbenzofurans.