Reactions with Hydrazonoyl Halides XXX: Synthesis of Some 2,3-Dihydro-1,3,4-Thiadiazoles and Unsymmetrical Azines Containing Benzothiazole Moiety
作者:Abdou O. Abdelhamid、Nora M. Rateb、Kamal M. Dawood
DOI:10.1080/10426500008082403
日期:2000.1.1
to give 2,3-dihydro-1,3,4-thiadiazoles in good yields. In contrast, hydrazonoyl bromides react with each of phenylthiourea (19a), phenylthiosemicarbazide (19b), and benzoylthiosemicarbazide (19c) afforded 5-arylazothiazole 22–24(a-c) derivatives, respectively. Structures of the new compounds were elucidated on the basis of elemental analyses, spectral data, and alternative methods of synthesis whenever
REACTIONS WITH HYDRAZONOYL HALIDES. PART 27<sup>[1]</sup>: SYNTHESIS OF SOME NEW TRIAZOLO[4,3-<i>a</i>]BENZIMIDAZOLE AND UNSYMMETRICAL AZINE DERIVATIVES
作者:Abdou O. Abdelhamid、Hussien F. Zohdi、M. M. M. Sallam、Nagla A. Ahmed
DOI:10.1080/10426500008045244
日期:2000.1
Abstract Triazolo[4,3-a]benzimidazole, unsymmetrical azine containing pyrazole moiety were synthesised via reactions of C-pyrazolôyl-N-p-chlorophenylhydrazonoyl bromide with each 2-(methylthio)benzimidazole and carbodithioates, respectively. Newly synthesised compounds were confirmed on the basis of elemental analysis, spectral data, and alternative route whenever possible.