1,3-Dipolar cycloaddition of diazocyclopropane to strained cycloalkenes and conjugated dienes to give spiro(1-pyrazoline-3,1?-cyclopropanes)
作者:Yu. V. Tomilov、E. V. Shulishov、G. P. Okonnishnikova、O. M. Nefedov
DOI:10.1007/bf00696713
日期:1995.11
Polycyclic spiro(1-pyrazoline-3,1′-cyclopropanes) were obtained in 32–70 % yields by the reaction of diazocyclopropane generatedin situ with 2-methyltricyclo[3.2.1.02,4]oct-6-ene, spiro[2,4]hepta-4,6-diene dimer, benzvalene, spiro[2,3]hex-1-ene, methyl 1-methylcyclopropene-3-carboxylate, buta-1,3-diene, and 2-methylbuta-1,3-diene.
通过原位生成的重氮环丙烷与 2-甲基三环 [3.2.1.02,4] oct-6-ene、spiro[2, 4]hepta-4,6-diene 二聚体、benzvalene、spiro[2,3]hex-1-ene、methyl 1-methylcyclopropene-3-carboxylate、buta-1,3-diene 和 2-methylbuta-1,3 -二烯。