Ebenaceae extractives. Part IV. Diosindigo A, a blue pigment from several Diospyros species
作者:Oliver C. Musgrave、Douglas Skoyles
DOI:10.1039/p19740001128
日期:——
The wood of seven of the eighteen species of Diospyros examined contains small amounts of a blue pigment, diosindigo A [8,8′-dihydroxy-4,4′-dimethoxy-6,6′-dimethyl-2,2′-binaphthylidene-1,1′-quinone(I; R1= Me, R2= OH)]. Other extractives include plumbagin, 7-methyljuglone, isodiospyrin, mamegakinone, bergenin, lupeol, betulin, betulinic acid, oleanolic acid, β-sitosterol, and stigmasterol. Diosindigo
检查的18种Diospyros中的7种木材含有少量的蓝色颜料diosindigo A [8,8'-dihydroxy-4,4'-dimethoxy-6,6'-dimethyl-2,2'-binaphthylidene- 1,1'-醌(I; R 1 = Me,R 2 = OH)]。其他提取物包括李子,7-甲基juglone,异二嘧啶,mamegakinone,卑尔根,卢佩欧,白桦蛋白,桦木酸,齐墩果酸,β-谷甾醇和豆甾醇。靛蓝A已通过氧化由7-甲基胡胶制得的4-甲氧基-6-甲基萘-1,8-二醇合成。