http://nopr.niscair.res.in/handle/123456789/316 Search the Channel search http://nopr.niscair.res.in/simple-search http://nopr.niscair.res.in/handle/123456789/3849 Title: Synthesis of novel aliphatic thiourea derivatives containing s-triazine moiety as potential antimicrobial agents <br/> <br/>Authors: Desai, Akshay D; Mahajan, Dharmesh H; Chikhalia, Kishor H <br/> <br/>Abstract: A new series of aliphatic thiourea and various aryl urea incorporating 1,3,5-s-triazine moiety is reported. This series has been obtained by the reaction of cyanuric chloride with thiophene-2-ethyl thiourea 1. Thus, the prepared 2-(thiophene-2-ethyl thioureido)-4,6-dichloro-s-triazine 2 has been subsequently treated with morpholine to get 2-(thiophene-2-ethyl thioureido)-4-(morpholino)-6-chloro-s-triazine 3. This is further treated with various aryl ureas to afford title compound 4a-j. The library of ureido linkage containing triazinyl moiety has been tested for in vitro antibacterial and antifungal activity against different microorganisms. The structure of novel synthesized compounds has been established on the basis of elemental analysis, ¹H NMR, IR and mass spectral data. <br/> <br/>Page(s): 1169-1173 Thu, 28 Jun 2007 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/679 Title: Synthesis of some 4-substituted hydrazinotetrazolo[1,5-⍺] quinoxalines <br/> <br/>Authors: Deshmukh, M B; Mali, A R; Jadhav, S D; Suryawanshi, A W <br/> <br/>Abstract: Reaction of 2,3 diketoquinoxaline in presence of phosphorus pentachloride and sodium azide in methanol gives 4-hydroxy tetrazolo[1,5-⍺]quinoxaline 3 which on reaction with phosphorous oxychloride gives 4-chloro tetrazolo[1,5-⍺]quinoxaline 4. This on treatment with hydrazine hydrate in ethanol yields 4-hydrazino tetrazolo[1,5-⍺]quinoxaline 5, which on reaction with various aldehydes in DMF gives 4-substituted hydrazinotetrazolo [1,5-⍺]quinoxalines 6a-g. The structures of compounds 6a-g have been confirmed by IR and ¹H NMR. <br/> <br/>Page(s): 1211-1213 Thu, 28 Jun 2007 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/678 Title: Solid phase deoximation of oximes to the corresponding carbonyl compounds using bromate exchange resin <br/> <br/>Authors: Sikdar, Atul P; Das, Pranab J <br/> <br/>Abstract: Bromate exchange resin (BRER) prepared by a simple elution technique has been used for deoximation of oximes to the corresponding carbonyl compounds in good yields in biphasic condition. <br/> <br/>Page(s): 1208-1210 Thu, 28 Jun 2007 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/677 Title: Microwave-assisted solvent-free synthesis of 4-methyl-2-hydroxy- and 2-methyl-4-hydroxyquinolines <br/> <br/>Authors: Nadaraj, V; Thamarai Selvi, S <br/> <br/>Abstract: Rapid and efficient microwave-assisted synthesis of 4-methyl-2-hydroxy- and 2-methyl-4-hydroxyquinolines from anilines and ethyl acetoacetate under different conditions is described. <br/> <br/>Page(s): 1203-1207 Thu, 28 Jun 2007 22:58:59 GMT