Several transformations starting from trans, trans-2-nitrocyclohexane-1,3-diol (1) and its diacetate (2) were carried out as model reactions for synthetic work on nitro sugars. They included methylation with diazomethane, dehydration, dehydroacetylation, nucleophilic elimination–additions with alcohols, and bromination. The monomethyl ether of 1 (3), the monomethyl ether acetate (5), the dimethyl and dibenzyl ethers (4 and 9), bromonitro compounds derived from 1 and 4 (13 and 14), and four 3-substituted 2-nitro-cyclohexenes with methoxyl, ethoxyl, acetoxyl, and hydroxyl groups as substituents (6, 8, 7, and 11, respectively) were obtained in these studies. The nitronate formation of 1 and 4 and attendant production of nitroolefins was investigated by u.v. spectroscopy.
本研究以trans-2-硝基环己烷-1,3-二醇(1)及其二乙酸酯(2)为模型反应物,进行了多种转化反应,以研究硝基糖的合成。这些反应包括二甲基化、脱水、脱乙酰基化、亲核消除-加成反应、溴代反应等。在这些研究中,得到了1的单甲醚(3)、单甲醚醋酸酯(5)、二甲醚和二苄基醚(4和9)、由1和4衍生的溴硝基化合物(13和14),以及四种3-取代的2-硝基环己烯,其取代基分别为甲氧基、乙氧基、乙酰氧基和羟基(6、8、7和11)。此外,本研究还通过紫外光谱研究了1和4的硝酸盐形成和硝基烯的生成。