571-72-2Relevant academic research and scientific papers
3,5-Dihydroxy-7,8-dimethoxyflavones and revised structures for some natural flavones
Horie, Tokunaru,Tsukayama, Masao,Kawamura, Yasuhiko,Yamamoto, Shigeo
, p. 1491 - 1495 (2007/10/02)
Seven 3,5-dihydroxy-7,8-dimethoxyflavones were synthesized from the corresponding 3,5,7,8-tetramethoxyflavones using selective demethylation and protection of 3- or 5- methoxy group, and their properties were clarified by the UV and 1H NMR spec
STUDIES OF THE SELECTIVE O-ALKYLATION AND DEALKYLATION OF FLAVONOIDS. IX. A NEW METHOD FOR SYNTHESIZING 3,5-DIHYDROXY-7,8-DIMETHOXYFLAVONES FROM 3-HYDROXY-5,7,8-TRIMETHOXYFLAVONES
Horie, Tokunaru,Tsukayama, Masao,Kawamura, Yasuhiko,Yamamoto, Shigeo
, p. 4465 - 4472 (2007/10/02)
2-Hydroxy-3,4,6-trimethoxy-ο-(p-methoxybenzoyloxy)acetophenone was prepared fom 2,3,4,6-tetramethoxyacetophenone via the corresponding ο-bromoacetophenone.Cyclization of the acetophenone with p-methoxybenzoic anhydride by application of the Allan-Robinson
