Synthesis of 2-Formylazulene and Its Derivatives by Oxidative Cleavage of 2-Styrylazulenes
作者:Motoyasu Saito、Tadayoshi Morita、Kahei Takase
DOI:10.1246/bcsj.53.3696
日期:1980.12
2-Formylazulene and its derivatives were prepared by the oxidative cleavage of styrylazulenes with NaIO4−OsO4. 1,2-Diformyl-, 1,2,3-triformylazulenes, and 5-formylazulene derivative were also synthesized. The reaction of dimethyl 2-methylazulene-1,3-dicarboxylate with p-nitroso-N,N-dimethylaniline in the presence of NaOR (R=Me or Et) gave the corresponding 3-alkoxycarbonyl-2-[p-(dimethylamino)phen
2-Formylazulene 及其衍生物是通过用 NaIO4−OsO4 氧化裂解苯乙烯基蕈烯制备的。还合成了 1,2-二甲酰基-、1,2,3-三甲酰基氮芥和 5-甲酰基氮芥衍生物。在 NaOR(R=Me 或 Et)存在下,2-methylazulene-1,3-dicarboxylate 与 p-nitroso-N,N-二甲基苯胺反应得到相应的 3-alkoxycarbonyl-2-[p-(dimethylamino)苯基亚氨基甲基]azulene-1-羧酸,然后用盐酸水解得到3-烷氧基羰基-2-甲酰基azulene-1-羧酸。2-formylazulene-1-羧酸与乙酸酐的乙酰化得到五元乳醇乙酸酯。