4274-29-7Relevant articles and documents
3,4,8,9,10-PENTAHYDROXY-DIBENZOPYRAN-6-ONE FROM TAMARIX NILOTICA
Nawwar, M. A. M.,Souleman, A. M. A.
, p. 2966 - 2967 (1984)
A new natural product, 3,4,8,9,10-pentahydroxy-dibenzo-pyran-6-one was isolated from the flowers of Tamarix nilotica which also contains the known compound ellagic acid, 2,3,7,8-tetrahydroxybenzopyranobenzopyran-5,10-dione.The structure of the new compound was determined by chemical and spectroscopic methods.The 13C NMR spectrum of ellagic acid was recorded and assigned. Key Word Index - Tamarix nilotica; Tamaricaceae; flowers; phenolic lactones; 3,4,8,9,10-pentahydroxy-dibenzopyran-6-one; ellagic acid; structural determination.