Regioselective Synthesis of 4,10-Dihydro-3-hydroxy-3-methyl-1H,3H-pyranobenzopyran-10-one, the Basic Skeleton in Fulvic Acid

DOI: 10.1039/c39830000335

Source and publish data:

Journal of the Chemical Society. Chemical communications p. 335 - 336 (1983)

Update date:2022-08-05

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Authors:

Yamauchi, Masashige

Katayama, Sadamu

Nakashita, Yoshihiko

Watanabe, Toshio

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Article abstract of DOI:10.1039/c39830000335

The first synthesis of 4,10-dihydro-3-hydroxy-3-methyl-1H,3H-pyrano<4,3-b><1>benzopyran-10-one, the basic skeleton in fulvic acid, was achieved by sequential cyclization, which involved hydrogenation of the boron complex of the dione (5) obtained by regio

Full text of DOI:10.1039/c39830000335

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