The palladium-mediated cross-coupling of bromotropolones with organostannanes; application to concise syntheses of β-dolabrin, β-thujaplicin, 7-methoxy-4-isopropyltropolone, and β-thujaplicinol
作者:Martin G. Banwell、Maree P. Collis、Geoffrey T. Crisp、John N. Lambert、Monica E. Reum、Judith A. Scoble
DOI:10.1039/c39890000616
日期:——
The bromotropolones (1), (2), and (3) cross-couple with organostannanes in the presence of palladium(0) to produce alkyl, alkenyl, or aryl substituted tropolones; the methodology has been applied to the synthesis of the monoterpenes β-dolabrin (4), β-thujaplicin (5), 7-methoxy-4-isopropyltropolone (7), and β-thujaplicinol (8).
在钯(0)的存在下,溴对苯二酮(1),(2)和(3)与有机锡烷交联以产生烷基,烯基或芳基取代的对苯二酚;该方法已被应用于合成单萜β-杜拉布林(4),β-thujaplicin(5),7-甲氧基-4-异丙基Tropolone (7)和β-thujaplicinol(8)。