Reactions of Hydrazonoyl Halides 56<sup>1</sup>: Synthesis and Reactions of 1-Bromo-2-(5-chloro-benzofuranyl)ethanedione-1-phenylhydrazone
作者:Abdou O. Abdelhamid、Ahmed H El-Ghandour、Ahmed A.M. El-Reedy
DOI:10.1080/10426500701640876
日期:2008.4.18
2,3-Dihydro-1,3,4-thiadiazoles and triazolino[4,3-a]pyrimidines containing benzofuran moiety were prepared from reaction of 1-bromo-2-(5-chlorobenzofuranyl) ethanedione-1-phenylhydrazone with each of potassium thiocyanate, alkyl carbodithioates and pyrmidine-2-thiones. All newly synthesized were confirmed by elemental analysis, spectral data, and alternative route synthesis whenever possible.
REACTIONS WITH HYDRAZONOYL HALIDES XXIV<sup>[1]</sup>: SYNTHESIS OF SOME NEW UNSYMMETRICAL AZINES AND DIHYDRO-1,3,4-THIADIAZOLES
作者:Abdou O. Abdelhamid、Gaber S. Mohamed
DOI:10.1080/10426509908031623
日期:1999.9.1
Abstract Unsymmetrical azines were synthesized from reaction of C-coumarinoyl-N-arylformohydrazonoyl bromide with different alkyl carbodithioates. In addition, reactions of hydrazonoylhalides with thioanilide and methyl dithioates were studied. The structures of newly synthesized compounds were confirmed by elemental analyses, spectroscopic tools, and alternative syntheses whenever possible.
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 59: Synthesis and Antimicrobial Activity of 2,3-Dihydro-1,3,4-thiadiazole, Triazolino[4,3-<i>a</i>]pyrimidine, and Pyrimido[1,2-<i>b</i>][1,2,4,5]tetrazin-6-one Containing Benzofuran Moiety
作者:Abdou O. Abdelhamid、Mahmoud A. Mohamed、Yasser H. Zaki
DOI:10.1080/10426500701734265
日期:2008.6.9
2,3-Dihydro-1,3,4-thiadiazole, triazolino[4,3-a]pyrimidine and pyrimido[1,2-b][1,2,4,5]tetrazin-6-one containing benzofuran Moiety were synthesized from C-benzofuran-2-yl-N-phenylhydrazonoyl bromides, and the appropriate alkyl arylidenehydrazinecabodithioates and pyrimidine-2-thione and N-aminopyrimidine-2-thione, respectively. All structures of the newly synthesized compounds were elucidated by elemental