Zobrazeno 1 - 10
of 45
pro vyhledávání: '"H. A. Daboun"'
Publikováno v:
Journal of Chemical Technology and Biotechnology. 32:489-495
The polarographic behaviour of a series of 4-arylidene-2-phenyl-2-oxazolin-5-one derivatives over a wide range of pH is reported and discussed. A mechanism for the electrode process is elucidated and confirmed via isolation and characterisation of el
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59d5c2e82c40d3d1012aaddb50767f56
https://doi.org/10.1002/jctb.5030320309
https://doi.org/10.1002/jctb.5030320309
Publikováno v:
ChemInform. 22
The reaction of α-cyanothioacetamide (1) or its methylthio derivative (2) with anthranilic acid led to the formation of 3,4-dihydro-4-oxoquinazolin-2-yl acetonitrile (3). 3 condensed with aromatic aldehydes to give arylidene derivatives (4a-d) which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2cf7c25a13e31595bb10c34b57b1ef5
https://doi.org/10.1002/chin.199125180
https://doi.org/10.1002/chin.199125180
Publikováno v:
Journal f�r Praktische Chemie. 332:610-618
The reaction of α-cyanothioacetamide (1) or its methylthio derivative (2) with anthranilic acid led to the formation of 3,4-dihydro-4-oxoquinazolin-2-yl acetonitrile (3). 3 condensed with aromatic aldehydes to give arylidene derivatives (4a-d) which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e102df1eaf5a924afd53b1116e92107e
https://doi.org/10.1002/prac.19903320505
https://doi.org/10.1002/prac.19903320505
Publikováno v:
Zeitschrift für Naturforschung B. 32:948-953
Treatment of 5-arylazo-2-thiohydantoins (2 a-c) with formaldehyde and the appropriate amine in ethyl alcohol led to the formation of the corresponding Mannich bases 3a-i. 2 a-c reacted with methyl bromoacetate and/or chloroacetic acid to give the est
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a228a1227a5e11ec8202afcd82395f59
https://doi.org/10.1515/znb-1977-0821
https://doi.org/10.1515/znb-1977-0821
Publikováno v:
Archiv der Pharmazie. 316:564-569
Several new pyridine derivatives were synthesised by the reaction of 2-amino-1,1,3-tricyanopropene (2) with acetylacetone and salicyl aldehyde and treatment of the products with active methylene reagents and hydrazines. The structures of the isolated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d807393f69f83b867692d14a1f61edf
https://doi.org/10.1002/ardp.19833160616
https://doi.org/10.1002/ardp.19833160616
Publikováno v:
Zeitschrift für Naturforschung B. 31:111-114
Treatment of 5-arylidene-2-thiohydantoin (1a-d) with alkyl bromoacetate and chloroacetic acid gave the esters 2a-f and the acids 2g-j, respectively. 2a was refluxed with concentrated hydrochloric acid to give 5-benzylidene hydantoin. 2 was cyclized w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27aa239291f4e8d3a04f9324cd2540ec
https://doi.org/10.1515/znb-1976-0120
https://doi.org/10.1515/znb-1976-0120
Publikováno v:
Canadian Journal of Chemistry. 62:2904-2907
H. M. FAHMY, H. A. DABOUN, M. ABDEL-AZZEM, G. CAUGUIS, and G. PIERRE. Can. J. Chcm. 62, 2904 (1984). The polarographic reduction data of 4-arylazo-I-ethylmercapto-3-(4H)isoquinolone derivatives in 50% by volume cthanolic aqueous buffered media are re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b092a35cfc5a4443b03f7b2738e8c38
https://doi.org/10.1139/v84-492
https://doi.org/10.1139/v84-492
Publikováno v:
Zeitschrift für Naturforschung B. 31:865-869
1-Phenyl-4-thiohydantoin reacted with aryldiazonium salts to give the corresponding 5-arylazo-1-phenyl-4-thiohydantoin (1 a-f). On alkylation of 1 a, b,f with different alkyl halides, the corresponding 4-alkylmercapto derivatives (2a-f) were obtained
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::414568897e37222d2c5abd725db1f256
https://doi.org/10.1515/znb-1976-0628
https://doi.org/10.1515/znb-1976-0628
Publikováno v:
Zeitschrift für Naturforschung B. 33:937-941
5-Arylazo-2-thiohydantoin derivatives (2a,c) were cleaved and rearranged by aqueous sodium hydroxide to give the corresponding 1-aryl-⊿2-1,2,4-trazole-5-imino-3-carboxylic acids (3a-c). 3 a was decarboxylated to 1-phenyl-⊿2 -1,2,4-triazoline-5-im
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::425a70d3fa47220e58c7035b9fb0c52c
https://doi.org/10.1515/znb-1978-0823
https://doi.org/10.1515/znb-1978-0823
Publikováno v:
Zeitschrift für Naturforschung B. 29:99-103
4-Thiohydantoin and 1-phenyl-4-thiohydantoin reacted with aromatic aldehydes to give the corresponding 5-arylidene-4-thiohydantoin (1 a-h). la was obtained also from 5-benzylidene hydantoin and phosphorous pentasulphide. Grignard reagents added to th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40b7da3a9a7f3c15bf6618b71ff018ae
https://doi.org/10.1515/znb-1974-1-231
https://doi.org/10.1515/znb-1974-1-231