Grandinal, a New Phloroglucinol Dimer from Eucalyptus grandis

Inder Pal SINGH; Rie HAYAKAWA; Hideo ETOH; Midori TAKASAKI; Takao KONOSHIMA

doi:10.1271/bbb.61.921

Bioscience, Biotechnology, and Biochemistry

Online ISSN : 1347-6947
Print ISSN : 0916-8451

Grandinal, a New Phloroglucinol Dimer from Eucalyptus grandis

Inder Pal SINGH, Rie HAYAKAWA, Hideo ETOH, Midori TAKASAKI, Takao KONOSHIMA

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Keywords: Eucalyptus grandis, grandinal, phloroglucinol, sideroxylonal A, grandinol

JOURNAL FREE ACCESS

1997 Volume 61 Issue 5 Pages 921-923

DOI https://doi.org/10.1271/bbb.61.921

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Abstract

Grandinal, a new dimeric phloroglucinol compound, was isolated from Eucalyptus grandis and characterized by spectral techniques. Tautomeric structures 1, 2, and 3 were assigned to grandinal. Biogenetically, 1 is proposed to be formed from intermediates derived from grandinol and jensenone.

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