A GENERAL SYNTHETIC METHOD OF 1,2-DIHYDROCYCLOBUTACOUMARIN AND ITS 1-SUBSTITUTED DERIVATIVES

DOI: 10.1246/cl.1981.423

Source and publish data:

Chemistry Letters p. 423 - 426 (1981)

Update date:2022-08-03

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Authors:

Naito, Toshihiko

Nakayama, Nayomi

Kaneko, Chikara

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Article abstract of DOI:10.1246/cl.1981.423

4-Methoxycoumarin reacts photochemically with ethylene and its substituted derivatives to form 8b-methoxy-1,2,2a,8b-tetrahydro-cyclobutacoumarin and its 1-substituted derivatives, which in turn eliminate methanol by boron trifluoride etherate in benzene to give the corresponding 1,2-dihydrocyclobutacoumarins in high overall yields.

Full text of DOI:10.1246/cl.1981.423

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