Zobrazeno 1 - 10
of 58
pro vyhledávání: '"M. A. Abbady"'
Publikováno v:
Molecules, Vol 8, Iss 8, Pp 622-641 (2003)
Condensation of 4,4’-diacetyldiphenyl sulphide (2) with variable amounts of thiosemicarbazide (3) in refluxing ethanol and in the presence of catalytic amounts of dry piperidine afforded only 4-acetylthiosemicarbazone-4’-ace
Externí odkaz:
https://doaj.org/article/1a6e6a8cfbd542bea46d0d0f0fcea173
Publikováno v:
Phosphorus, Sulfur, and Silicon and the Related Elements. 190:1828-1844
4,4'-Dimonochloroacetyl diphenylselenide (2) was prepared as a new precursor for the title studies by chloroaceylation of diphenylselenide (1). 2 Interacts with thiourea to afford 4,4'-di(2”-aminothiazol-4”-yl) diphenyl selenide (3). Condensation
Publikováno v:
Phosphorus, Sulfur, and Silicon and the Related Elements. 185:1708-1725
3,3′-Diacetyloxy (2), 3,3′-dihydroxy (3), 4,4′-diamino (4), and 4-amino (5) diphenylselenide derivatives were prepared as new precursors for the title studies. Compound 6 was obtained by condensation of 4 with an appropriate aromatic aldehyde.
Publikováno v:
Journal of Applied Polymer Science. 112:620-628
A new interesting class of polyurea derivatives 5a-c was synthesized using solution polycondensation technique by the interaction of 1 mol of 4,4′-bis(2″-aminothiazol-4″-yl)diphenyl ether monomer 3 with 1 mol of diisocyanate compounds in pyridi
Publikováno v:
Journal of Chemical Technology and Biotechnology. Chemical Technology. 34:62-72
Cyclonucleophilic addition of N-phthaloylaminoacid chlorides (II on 4-(N-ary-lideneamino)-4′-nitrodiphenyl sulphides (I) in dioxane and triethylamine afforded 4-(4″-aryl-3″-phthalylamino-2″-oxo-azetidin-1″-yl)-4′-nitro-diphenyl sulphides
Publikováno v:
Journal of Chemical Technology and Biotechnology. 31:111-114
4-Amino-4′-nitrodiphenylsulphide and 4-amino-2′-nitrodiphenyl sulphide (I) were smoothly condensed with 2-methyl-3,1-benzoxazin-4-one (II) to produce the corresponding 2-methyl-3-diphenylsulphidoquinazol-4-ones (III). 2-Styryl-3-diphenylsulphidoq
Publikováno v:
Express Polymer Letters. 1:197-207
A new homologous series of thermally stable thermotropic liquid crystalline poly(azomethine-ether)s based on thiazole moiety were synthesized by solution polycondensation of 4,4'-diformyl-α,ω-diphenoxyalkanes, I-IV or 4,4'- diformyl-2,2'-dimethoxy-
Publikováno v:
Polymer International. 54:1512-1523
An interesting new class of linear polyketoamine polymers containing ether or thioether linkages in the main chain has been synthesized by solution polycondensation of 4,4′-bis(chloroacetyl)diphenyl ether (I), 4,4′-bis(chloroacetyl)diphenyl sulfi
Publikováno v:
Polymer International. 51:125-133
A new interesting class of polyketoamine polymers based on diarylidenecycloalkanone were synthesized by suspension polycondensation. These polymers were synthesized via polymerization of 2,5-bis(4-chloroacetylbenzylidene)cyclopentanone and 2,6-bis(4-
Autor:
M. A. Abbady, Sh. H. Abdel-Hafez
Publikováno v:
Phosphorus, Sulfur, and Silicon and the Related Elements. 160:121-139
4′-Nitro-4-aminodiphenylselenide (1) reacts with chloroacetyl chloride giving 4′-nitro-4-chloroacetylaminodiphenylselenide (2) which undergo facile reaction with certain amines and hydrazine yielding 4′-glycylamino and hydrazinoacetylamino-4′