• Corpus ID: 16937452

Acid-catalyzed rearrangements of flavan 4 phlorogkinol derivatives to novel 6 = hydroxyp

@inproceedings{Steynberg1999AcidcatalyzedRO,
  title={Acid-catalyzed rearrangements of flavan 4 phlorogkinol derivatives to novel 6 = hydroxyp},
  author={Petzvs J. Steynberg and Johannes Steynberg and Whitman Hemingway},
  year={1999}
}
Acetic acid-catalyxed cleavage of proanthocyanidins in the preaeace of phloroglucinol gives a series of 2R procyanidlnand prodelphfnidin-phIoroglucino~ adducta together with a novel 2s skis derivative implicating cleavage of the pyran ring and subsequent imersion of stereochemistry at C&. These Bavan4-phloroglucinoi adducta also suffer dehydration to producb with novel fused dihydro&ozopyrandihydrohcnaofuran ringa. In addition, cleavage of the &wan C-10,4Xc bond followed by dehydration… 

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