Intramolecular electrocyclic reactions. Part I. Structure of ‘bromohydroxyphorone’: 3-bromo-5-hydroxy-4,4,5,5-tetramethylcyclopent-2-enone
作者:C. W. Shoppee、Ruth E. Lack
DOI:10.1039/j39690001346
日期:——
αα′-Dibromophorone (3,5-dibromo-2,6-dimethylhepta-2,5-dien-4-one) as the conjugate acid undergoes intramolecular electrocyclic addition to give 3-bromo-5-hydroxy-4,4,5,5-tetramethylcyclopent-2-enone. The reactions of this substance, its bromine-free analogue and their derivatives, recorded by Ingold and Shoppee in 1928, are clarified and reinterpreted.
作为共轭酸的αα′-二溴佛尔酮(3,5-dibromo-2,6-二甲基庚2,5-dien-4-one)进行分子内电环加成反应得到3-bromo-5-hydroxy-4,4,5 ,5-四甲基环戊-2-烯酮。澄清并重新解释了Ingold和Shoppee在1928年记录的该物质,其无溴类似物及其衍生物的反应。