Chemistry of α-nitroepoxides : Synthesis of useful intermediates via nucleophilic ring opening of α-nitroepoxides
作者:Yashwant D. Vankar、Kavita Shah、Anita Bawa、Surendra P. Singh
DOI:10.1016/s0040-4020(01)81002-4
日期:1991.10
Various α-nitroepoxides are converted into corresponding 1,2-diketones via two different ways of ring opening viz. with Pd(O) and with DMSO/BF3·Et2O(or ClSiMe3). In addition to this, a variety of nucleophiles are reacted with α-nitrocyclopentene oxide 6 and α-nitro-cyclohexene oxide 7 to form the corresponding α-substituted ketones which are useful intermediates in organic synthesis. Two of the products
各种α-硝基环氧化物通过两种不同的开环方式转化为相应的1,2-二酮。用Pd(O)和DMSO / BF 3 ·Et 2 O(或ClSiMe 3)。除此之外,各种亲核试剂与α-硝基环戊烯氧化物6和α-硝基环己烯氧化物7反应以形成相应的α-取代的酮,其在有机合成中是有用的中间体。这样获得的两种产品即。还通过面包酵母的还原然后内酯化将32和33分别进一步转化为旋光的内酯38和39。