Intramolecular [2+2]Photocycloaddition of the 3-(3-Butenyloxy)-2-cyclohexenone System
作者:Takashi Umehara、Yoshinobu Inouye、Hiroshi Kakisawa
DOI:10.1246/bcsj.54.3492
日期:1981.11
The irradiation of 5,5-dimethyl-3-(4-methyl-3-pentenyloxy)-2-cyclohexenone gave regioselectively, 6,6,10,10-tetramethyl-2-oxatricyclo[5.4.0.01,5]undecan-8-one, while, that of 5,5-dimethyl-3-[(3-methylcyclohexenyl)methoxy]-2-cyclohexenone afforded, regio- and stereoselectively, 1,5,5-trimethyl-8-oxatetracyclo[8.3.1.02,7.01,5]tetradecan-3-one.
辐照 5,5-二甲基-3-(4-甲基-3-戊烯氧基)-2-环己烯酮,可选择性地得到 6,6,10,10-四甲基-2-氧杂三环[5.4.0.01,5]十一烷-8-酮,而 5,5-二甲基-3-[(3-甲基环己烯基)甲氧基]-2-环己烯酮则可获得 1,5,5-三甲基-8-氧杂四环[8.3.1.02,7.01,5]十四烷-3-酮。