Oppolzer's camphor-derived neopentyloxy alcohols is described. Bicyclic products are obtained in yields of up to 65% and with diastereoselectivities as high as 94:6 under very mild reaction conditions. The absolute configurations of the major stereoisomers obtained when (1R, 2S, 3R, 4S)-3-neopentyloxy-1,7,7-trimethylbicyclo- [2.2.1]heptan-2-ol is used as a chiral auxiliary are rationalized on the basis of
描述了Oppolzer
樟脑衍生的新戊氧基醇的烯醇和ynol醚的分子内Pauson-Khand反应。在非常温和的反应条件下,双环产物的收率高达65%,非对映选择性高达94:6。当(1 R,2 S,3 R,4 S)-3-新戊基氧基-1,7,7-三甲基双环-[2.2.1]庚-2-醇用作手性化合物时,获得的主要立体异构体的绝对构型在理论上预测的模型前体的优先构象的基础上,对辅料进行合理化处理。还提出了获得无助剂,对映体纯的双环α-甲氧基烯酮的简单方法。