2,5-Dihydro-1H-1,2,4-triazol-2-yl radicals: Syntheses and properties
摘要:
A range of 2,5-dihydro-1H-1,2,4-triazol-2-yl radicals 2b-p has been prepared by dehydrogenation of the corresponding 4,5-dihydro-1H-1,2,4-triazoles 5b-p which have been synthesized using various methods. EPR, ENDOR and NMR studies have led to a complete analysis and full assignment of all hyperfine coupling constants. The pi-SOMO, having a node at the C(3) methine carbon, is mainly confined to the nitrogens of the five-membered ring, particularly to those of the hydrazyl moiety.
BELOVA, N. V.;VOLODARSKIJ, L. B.;TIXONOV, A. YA., XIMIYA GETEROTSIKL. SOEDIN., 1986, N 3, 352-356
作者:BELOVA, N. V.、VOLODARSKIJ, L. B.、TIXONOV, A. YA.
DOI:——
日期:——
2,5-Dihydro-1H-1,2,4-triazol-2-yl radicals: Syntheses and properties
作者:Franz A. Neugebauer、Hans Fischer
DOI:10.1016/0040-4020(95)00730-v
日期:1995.11
A range of 2,5-dihydro-1H-1,2,4-triazol-2-yl radicals 2b-p has been prepared by dehydrogenation of the corresponding 4,5-dihydro-1H-1,2,4-triazoles 5b-p which have been synthesized using various methods. EPR, ENDOR and NMR studies have led to a complete analysis and full assignment of all hyperfine coupling constants. The pi-SOMO, having a node at the C(3) methine carbon, is mainly confined to the nitrogens of the five-membered ring, particularly to those of the hydrazyl moiety.
Formation of 4,5-dihydro-1,2,4-triazoles during rearrangement of O-acetyl derivatives of 1,2-hydroxylaminohydrazones and thiosemicarbazones