作者:Jian-Hua Xu、Yi-Lin Song、Yun Shang
DOI:10.1039/c39910001621
日期:——
10-Dicyanoanthracene (DCA) and chloranil sensitized electron transfer photooxygenation of 8-methoxypscralen in MeOH–MeCN (7 : 3, v/v) gave the furan ring oxidized product 4′-oxo-5′,8-dimethoxypsoralen 2,9-dimethoxy-7H-furo[3,2-g][1]benzopyran-3,7(2H)-dione} in 38 and 74% yield, respectively, while in HOAC–MeCN (2 : 8, v/v), similar photooxygenation gave 4′-oxo-5′-acetoxy-8-methoxypsoralen 2-acetox
9,10-二氰基蒽(DCA)和8-甲氧基丙烯酰胺在MeOH-MeCN(7:3,v / v)中的苯甲酰敏电子转移光氧合反应得到呋喃环氧化产物4'-oxo-5',8-dimethoxypsoralen 2 ,9-二甲氧基-7 H-呋喃[3,2- g ] [1]苯并吡喃-3,7(2 H)-二酮}的收率分别为38%和74%,而在HOAC–MeCN(2:8 v / v),类似的光氧化反应得到4'-oxo-5'-乙酰氧基-8-甲氧基补骨脂素2-乙酰氧基-9-甲氧基-7 H-呋喃[3,2- g ] [1]苯并吡喃-3,7( 2 H)-二酮}作为产物,分别以30%和73%的产率收率。