Zobrazeno 1 - 10
of 114
pro vyhledávání: '"RANJAN G. PATEL"'
Publikováno v:
Journal of the Serbian Chemical Society, Vol 72, Iss 11, Pp 1039-1044 (2007)
New quinazolinone-substituted fluoran compounds were synthesized by reaction of keto acid, 2’-carboxy-2-hydroxy-4-N-pyrrolidinylbenzophenone with different quinazolinone derivatives in the presence of conc. sulphuric acid. All the synthesized fluor
Externí odkaz:
https://doaj.org/article/569bd1027d65458692a2dd4c87ebdc12
Publikováno v:
Journal of the Serbian Chemical Society, Vol 71, Iss 10, Pp 1015-1023 (2006)
Anthranilic acid was reacted with various substituted 6-bromoquinazolinones in the presence of Cu-powder and anhydrous potassium carbonate in DMF to give acid intermediates (Ullmann Type-II condensation). All these acids were then cyclized in phospho
Externí odkaz:
https://doaj.org/article/49fa74ce972d4cc5a1b5ac5750e96bfe
Publikováno v:
Journal of the Serbian Chemical Society, Vol 69, Iss 5, Pp 327-333 (2004)
Chromogenic fluoran compounds containing 4-ketoquinazolinone were synthesized by reacting 2-(4-diethylamino-2-hydroxybenzoyl)benzoic acid with various substituted 4-ketoquinazolinones in the presence of sulfuric acid. The 4-ketoquinazolinones were ob
Externí odkaz:
https://doaj.org/article/31ddf7faa3b74477a0537081832bf68a
Publikováno v:
Journal of the Serbian Chemical Society, Vol 68, Iss 8-9, Pp 607-613 (2003)
2-Chloro-6-diethylaminofluoran and 2-chloro-3-methyl-6-diethylaminofluoran were reacted with various diphenols in dimethyl formamide in the presence of potassium carbonate to give the related bis-fluoran compounds. All the synthesized derivatives wer
Externí odkaz:
https://doaj.org/article/9383cc52e8d4468588522a2a09c740dd
Publikováno v:
Journal of the Serbian Chemical Society, Vol 67, Iss 11, Pp 727-734 (2002)
A new fused heterocyclic compound, 11-amino-13H-acenaphtho[1,2-e]pyridazino [3,2-b]quinazolin-13-one was synthesized and used to prepare a novel series of heterocyclic mono azo dyes by coupling with various naphthols. All the mono azo dyes were chara
Externí odkaz:
https://doaj.org/article/561dc0abd847459d93c2cf3970762f5e
Publikováno v:
Journal of the Serbian Chemical Society, Vol 67, Iss 11, Pp 719-726 (2002)
A series of new heterocyclic disperse dyes has been prepared by subsequent diazotization of 2-methyl-3-[3-aminophthalimido]-4(3H)-quinazolinone and coupling with various mono- and di-N-substituted derivatives of aniline. All the disperse dyes were ch
Externí odkaz:
https://doaj.org/article/edc3b840586c44ff97383ca90e277c0a
Publikováno v:
Journal of Chemical Sciences. 125:525-530
Libraries of 2-amino-4H-chromenes, were efficiently synthesized via one-pot, three-component reactions of 5-chloro-3-methyl-1-aryl-4,5-dihydro-1H-pyrazole-4-carbaldehyde (1a–c), 2-naphthols (2a–f) and malononitrile in the presence of catalytic am
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d278555c0dbc9b4428402f17a697d8f
https://doi.org/10.1007/s12039-013-0421-y
https://doi.org/10.1007/s12039-013-0421-y
Publikováno v:
Medicinal Chemistry Research. 22:3831-3842
A new series of 4H-chromene derivatives 6a–x bearing 2-aryloxyquinoline nucleus have been synthesized under microwave irradiation by reaction of 2-aryloxyquinoline-3-carbaldehyde 3a–l, malononitrile 4, and compounds (Cyclohexanedione, Dimidone) 5
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3423e5bf5684c19bcecfca4dd4b26ac5
https://doi.org/10.1007/s00044-012-0381-7
https://doi.org/10.1007/s00044-012-0381-7
Publikováno v:
Chinese Chemical Letters. 23:1367-1370
A series of some new tetrazolo[1,5-a]quinoline based tetrasubstituted imidazole derivatives 6a–l have been synthesized by a reaction of tetrazolo[1,5-a]quinoline-4-carbaldehyde 3a–d, benzil 4, aromatic amine 5a–c and ammonium acetate in the pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e44495493fdd54cc4de2699300f6c768
https://doi.org/10.1016/j.cclet.2012.11.007
https://doi.org/10.1016/j.cclet.2012.11.007
Publikováno v:
Journal of Heterocyclic Chemistry. 49:1310-1316
A simple and efficient method has been developed for the synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-dione derivatives through a one-pot three-component condensation reaction of 2-chloro-3-formyl quinolines, malononitrile/ethyl cyanoacetate and 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9ea3aa75107b40c8f4ab34024f0495e
https://doi.org/10.1002/jhet.918
https://doi.org/10.1002/jhet.918