New trialkylsilyl enol ether chemistry: α-N-tosylamination of triisopropylsilyl enol ethers
作者:Philip Magnus、Jérôme Lacour、Iain Coldham、Benjamin Mugrage、William B. Bauta
DOI:10.1016/0040-4020(95)00696-6
日期:1995.10
Triisopropylsilyl enol ethers reaet with (TsN)2Se to give α-N-tosylamino derivatives in modest to good yields. In the absence of 1,3-diaxial interactions the N-tosylamino group prefers an axial conformation. The axial N-tosylamino derivatives can be readily transformed into the azabicyclo[3.3.1]nonane skeleton, the core structure of a number of alkaloids.
三异丙基甲硅烷基烯醇醚与(TsN)2 Se共反应,以中等至良好的收率得到α- N-甲苯磺酰基氨基衍生物。在没有1,3-双轴相互作用的情况下,N-甲苯磺酰基氨基优选轴向构象。轴向N-甲苯磺酰基氨基衍生物可以容易地转化成氮杂双环[3.3.1]壬烷骨架,该骨架是许多生物碱的核心结构。