作者:F. Scheinmann、H. Suschitzky
DOI:10.1016/0040-4020(59)80049-1
日期:1959.1
Preparations of furano-(II and V) and pyranoxanthones (III) from 2-allyl-1-hydroxyxanthone (I; ROH, R′CH2CH:CH2 R″R‴H) and the orientation of 2-formyl-1-hydroxyxanthone (I; ROH, R′CHO, R″R‴H) and of 4-acetyl-1-hydroxyxanthone (I; ROH, R′R‴H, R″Ac) are described. The ultra-violet absorption spectra of the new ring systems and their intermediates are briefly discussed.
从2-烯丙基-1- hydroxyxanthone的furano-制剂(II和V)和pyranoxanthones(III)(I;ROH,R'CH 2 CH:CH 2 R“R'''H)和取向2-甲酰基-1-羟基x吨酮(I;ROH,R'CHO,R''‴RH)和4-乙酰基-1-羟基x吨酮(I;ROH,R'R‴H ,R”Ac)被描述。简要讨论了新的环系统及其中间体的紫外吸收光谱。