Journal of the Chemical Society. Chemical communications p. 761 - 762 (1981)
Update date:2022-08-03
Topics:
Watanabe, Toshio
Katayama, Sadamu
Nakashita, Yoshihiko
Yamauchi, Masashige
Regiospecific cyclization of the acetal (4g), derived in 5 steps from 2'-benzyloxyacetophenone (3a), gave the pyrone (6a) which was easily converted into 2-methyl-5H-pyrano<3,2-c><1>benzopyran-4-one (1b), the basic skeleton in citromycetin (1a).
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(1984)
