Reinvestigation of o-phenylenediamine thermal cyclocondensation with thiosemicarbazide

Article abstract of DOI:10.1515/HC.2006.12.3-4.273

Thermal cyclocondensation of o-phenylenediamine with thiosemicarbazide at elevated temperature gave the 1,3-dihydro-2H-1,3-benzimidazole-2-thione not the 1,4-dihydro- 1,2,4-benzotriazine-3(2H)thione claimed by an earlier worker. Analytical and spectral data are given in support of this reinvestigtation.

Full text of DOI:10.1515/HC.2006.12.3-4.273

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Download Date | 2/9/15 9:35 PM