FRANCK-NEUMANN, M.;GEOFFROY, P.;LOHMANN, J. J., TETRAHEDRON LETT., 1983, 24, N 17, 1775-1178
作者:FRANCK-NEUMANN, M.、GEOFFROY, P.、LOHMANN, J. J.
DOI:——
日期:——
XRIMYAN A. P.; BADANYAN SH. O., AJKAKAN KIMIAKAN AMSAGIR. ARM. XIM. ZH., 1978, 31, HO 9, 682-688
作者:XRIMYAN A. P.、 BADANYAN SH. O.
DOI:——
日期:——
Additions 1,3-dipolaires du diazo-2-propane sur le diacetylene et evolution photochimique des 3H-pyrazoles formes.
作者:M. Franck-Neumann、P. Geoffroy、J.J. Lohmann
DOI:10.1016/s0040-4039(00)81767-0
日期:1983.1
Diacetylene reacts with 2-diazopropane to give the acetylenic 3H-pyrazole I and the bis 3H-pyrazole II. By photolysis both azo-heterocycles lead to rearranged acetylenic compounds. The observed products are best explained by the intervention of unsaturated carbenes which do not cyclize into cyclopropenes.