Studies on Organophosphorus Compounds; 70: A Novel Synthesis of Functionalized 4,5-Dihydroisoxazole Derivatives via α-Nitroalkenes
作者:Chaozhong Li、Chengye Yuan
DOI:10.1055/s-1993-25883
日期:——
Nucleophilic addition of nitroethylene with various carbanions followed by treatment with chlorotrimethylsilane gave the corresponding silyl nitronate as a 1,3-dipole, which reacted with a monosubstituted alkene (3-buten-2-one or methyl 2-propenoate) to give functionalized 4,5-dihydroisoxazole derivatives in a one-pot procedure.
硝基乙烯与各种碳离子发生亲核加成反应,然后用三甲基氯硅烷处理,得到相应的硝酸硅烷基酯作为 1,3-二极,它与单取代烯烃(3-丁烯-2-酮或 2-丙烯酸甲酯)发生反应,在一锅程序中得到官能化的 4,5-二氢异噁唑衍生物。