Tetrahedron Letters p. 5023 - 5024 (1983)
Update date:2022-08-04
Topics:
Rao, Usha
Balasubramanian, K. K.
The Claisen rearrangement of aryl propargyl ethers in poly(ethylene glycol)-200 at 220 o 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.
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