作者:Takuichi Miki、Kentaro Hiraga、Tsunehiko Asako、Hirotomo Masuya
DOI:10.1248/cpb.15.670
日期:——
2-Methyl, 2-propyl and 2-phenethylcyclopentane-1, 3-dione (III) were prepared by the catalytic hydrogenation of the corresponding 2-(α-ethoxyalkylidene) cyclopent-4-ene-1, 3-diones, (II), which were obtained by the condensation of cyclopent-4-ene-1, 3-dione (I) and ethyl ester of ortho acids.
2-甲基、2-丙基和2-苯乙基环戊烯-1, 3-二酮(III)是通过相应的2-(α-乙氧烷基烯基)环戊烯-1, 3-二酮(II)的催化氢化制备的,后者是通过环戊烯-1, 3-二酮(I)与邻酸的乙酯的缩合反应得到的。