作者:I. L. Dalinger、I. A. Vatsadze、T. K. Shkineva、I. O. Kortusov、G. P. Popova、V. V. Kachala、S. A. Sheveleva
DOI:10.1007/s11172-010-0313-y
日期:2010.9
N-Substituted 3,4-dinitropyrazoles, 1,5-dimethyl-3,4-dinitropyrazole and 1-methoxy-methyl-5-methyl-3,4-dinitropyrazole, undergo nucleophilic substitution when reacted with S-, O-, and N-nucleophiles. The substitution occurs regioselectively at the 3-position, affording products in good yields. Anions of N-unsubstituted 3,4-dinitropyrazoles, 1H-3(5)-methyl-4,5(3)-dinitropyrazole and 1H-4,5(3)-dinitropyrazole, also react in water with S-nucleophiles with regioselective substitution of the nitro groups in the position 3(5).
N-取代的3,4-二硝基吡唑、1,5-二甲基-3,4-二硝基吡唑和1-甲氧基-甲基-5-甲基-3,4-二硝基吡唑在与S-、O-和N-亲核试剂。取代区域选择性地发生在 3 位,从而以良好的产率提供产物。 N-未取代的 3,4-二硝基吡唑、1H-3(5)-甲基-4,5(3)-二硝基吡唑和 1H-4,5(3)-二硝基吡唑的阴离子也在水中与 S-亲核试剂发生区域选择性反应3(5)位硝基的取代。