3-(3-氨基-5-氧代-1,5-二氢吡唑-4-亚烷基)-1,3-二氢吲哚-2-一与N-芳基-2-氧代丙烷酰氯在二氧六环存在下的反应三乙胺选择性地进行区域和位点生成3-(2-芳基偶氮-3-甲基-6-氧代咪唑并[1,2 - b ]吡唑-7-亚烷基-吲哚-2-酮,而不是异构体形式3- (3-芳基偶氮-2-甲基-6-氧代咪唑并[1,2- b ]吡唑-7-亚烷基-吲哚-2-酮。另一方面,N的反应在回流的乙醇中和三乙胺存在下,将(-2-氧代吲哚啉-3-亚基)肼甲硫酰肼与with酰氯选择性地进行区域和位点合成,分别得到各自的3-(取代的1,3,4-噻二唑-2-亚基肼基氮杂)indolin-2-ones。还讨论了新产品的形成机理。通过元素和光谱数据(1 H-NMR,IR和质量)和NOE实验确定了分配给产品的结构。此外,评估了产品对某些真菌和细菌的生物活性,获得的结果表明,与使用的标准参考品相比,其中一些具有很高的效力。
Reactions with Hydrazonoyl Halides 63: Synthesis and Anticancer Activity of Some New 1,3,4-Thiadiazoles, 1,3,4-Selenadiazoles, and 1,2,4-Triazolo[4,3-<i>a</i>]pyrimidines
作者:Eman K. A. Abdelall、Mahmoud A. Mohamed、Abdou O. Abdelhamid
DOI:10.1080/10426500903348013
日期:2010.8.25
4-selenadiazoles, and triazolino[4,3-a]pyrimidines containing benzoxazole or benzothiazole moieties were prepared from the reaction of each of ethyl 3-aza-3-(benzoxazol-2-ylamino)-2-chloroprop-2-enoate and ethyl 3-aza-3-(benzothiazolo-2-ylamino)-2-chloroprop-2-enoate with each of potassium thiocyanate, potassium selenocyanate, alkyl carbodithioate, and pyrmidine-2-thione derivatives. All the newly synthesized
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 42<sup>1</sup>: Synthesis of Some New 2,3-Dihydro-1,3,4thiadiazoles, 2,3-Dihydro-1,3,4-selenadiazoles and Triazolino[, ]pyrimidines
作者:Abdou O. Abdelhamid、Mohamed A. M. Alkhodshi
DOI:10.1080/104265090508091
日期:2005.1.1
Abstract 2,3-Dihydro-1,3,4-thiadiazoles, 2,3-dihydro-1,3,4-selenadiazoles, unsymmetrical azines and triazolino[ [4] , [3] ]pyrimidines were prepared from reaction of (2Z)-3-aza-2-bromo-1-naphto[ [1] , [2] ]furan-2-yl-3-(phenylamino)prop-2-en-1-one (6) with each of potassium thiocyanate, potassium selenocyanate, alkyl carbodithioate, ethyl 6-methyl-2-methylthio-4-substituted 3,4-dihydropyrimidine-5-carboxylate
REACTIONS OF HYDRAZONOYL HALIDES 39<sup>1</sup>: SYNTHESIS OF SOME NEW TRIAZOLES AND 2,3-DIHYDRO-1,3,4-THIADIAZOLES
作者:Abdou O. Abdelhamid、Ali A. Al-Atoom
DOI:10.1080/10426500490475067
日期:2004.11.1
C-acyl-N-phenyllhydrazonoyl halides 1a–ghave been caused to react with 3-(aminomethylthiomethyl)-2H-chromen-2-one in the presence of triethylamine to give triazoles. Also, C-acyl-N-pyrazolylhydrazonoyl chlorides 13a, breact with alkyl carbodithioates (14or 15) a–mafforded 2,3-dihydro-1,3,4-thiadiazoles in good yields. Structures of the new compounds were elucidated on the basis of elemental analyses
Synthesis, antimicrobial studies, and molecular docking of some new dihydro-1,3,4-thiadiazole and pyrazole derivatives derived from dithiocarbazates
作者:Amr Hassan Moustafa、Doaa H. Ahmed、Mohamed T. M. El-Wassimy、Mamdouh F. A. Mohamed
DOI:10.1080/00397911.2020.1843179
日期:2021.2.16
A series of 3-acetyl-2-aryl-5-methylthio-2,3-dihydro-1,3,4-thiadiazoles 3a–g, N- (4-acetyl-5-aryl-4,5-dihydro-1,3,4-thiadiazol-2-yl) acetamide derivatives 5a–e and spiro-compound 7 was prepared fro...