A versatile one-pot synthesis of 4-substituted 3-(nitrooxyalkyl)furoxans by the reaction of 3-alkylfuroxans with a mixture of nitric and sulfuric acids was developed. A plausible mechanism of this unusual transformation was explained in terms of a new Grob-type fragmentation.
通过 3-烷基
呋喃与
硝酸和
硫酸的混合物反应,开发了 4-取代 3-(硝基氧基烷基)
呋喃的多功能一锅法合成。这种不寻常的转变的一个似是而非的机制可以用新的 Grob 型碎片来解释。