Thermal rearrangement of. alpha.-(aryloxy) methylacrylic acids: a facile synthesis of 3-methylcoumarins

K Sunitha, KK Balasubramanian…

Index: Sunitha, K.; Balasubramanian, K. K.; Rajagopalan, K. Journal of Organic Chemistry, 1985 , vol. 50, # 9 p. 1530 - 1531

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Citation Number: 15

Abstract

Polyethylene glycol (PEG) has gained prominence as a solvent of choice in recent years due to ita unique structural features and practical Earlier work from our laboratory has shown that there is a considerable rate enhancement (by a factor of 2-2.5) of the rearrangement of aryl propargyl ethers in PEG-200 as compared to that in N, N-diethyla~~ iline.~ Also, a detailed study of the rearrangement of 1, 4-bis (aryloxy)-2-butynes in PEG-200 indicated a ...