Shimokoriyama, Nippon Kagaku Zasshi, 1950, vol. 71, p. 27
作者:Shimokoriyama
DOI:——
日期:——
Total Synthesis of Flavocommelin, a Component of the Blue Supramolecular Pigment from <i>Commelina </i><i>c</i><i>ommunis</i>, on the Basis of Direct 6-<i>C</i>-Glycosylation of Flavan
作者:Kin-ichi Oyama、Tadao Kondo
DOI:10.1021/jo0494681
日期:2004.8.1
We succeeded in a first total synthesis of flavocommelin (1), a component of the blue supramolecular pigment, commelinin (2), from Commelina communis, by direct 6-C-glycosylation of the flavan 4 using perbenzylglucosyl fluoride 8 in the presence of MS 5 Å in CH2Cl2 and a catalytic amount of BF3·Et2O. After 6-C-glycosylation of 4, oxidation with CAN to flavanone 18 and subsequent 4‘-O-glycosylation