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A convenient synthesis of 2??mercapto and 2??chlorobenzothiazoles
: Journal of Heterocyclic Chemistry, , vol. 42, # 4 p. 727 - 730
... [13] RR Gupta, M. Kumar and V. Gaupta, Heterocyclic Chemistry, Vol. 2, Springer, New York, (1999), pp. 421. ... [17] FA Carey and R. J. Sundberg, Advanced Organic Chemistry, Part B: Reactions and Synthesis, 3rd edition, Plenum Press, New York, (1990), pp.... |
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Synthesis of substituted pyrroles from ketones
: Chelucci, Giorgio; Marchetti, Mauro Journal of Heterocyclic Chemistry, 1988 , vol. 25, p. 1135 - 1137
Jul-Aug 1988 Synthesis of Substituted Pyrroles from Ketones Giorgio Chelucci* Dipartimento di Chimica, Università di Sassari, Via Vienna, 2, 07100 Sassari, Italy Mauro Marchetti Istituto per l'Applicazioni delle Tecniche Avanzate ai Problemi Agrobiologici, Vi... |
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Synthesis of oxindole derivatives from N??alkenyl??o??chloroanilides with zero??valent nickel complex
: Canoira, L.; Rodriguez, J. G. Journal of Heterocyclic Chemistry, 1985 , vol. 22, p. 1511 - 1518
Abstract Oxindole derivatives have been obtained from N-alkenyl-o-chloroanilides by reaction with tetrakis (triphenylphosphine) nickel (0) in toluene as solvent in good yields. A detailed analysis of all the products of the reaction allows to confirm the post... |
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Furopyridines. VI. Preparation and reactions of 2??and 3??substituted furo [2, 3??b] pyridines
: Morita, Hiroyuki; Shiotani,Shunsaku Journal of Heterocyclic Chemistry, 1986 , vol. 23, p. 1465 - 1469
Abstract This paper describes the synthesis and chemical properties of some 2-and 3- substituted furo [2, 3-b] pyridines. Reaction of ethyl 2-chloronicotinate 1 with sodium ethoxycarbonylmethoxide or 1-ethoxycarbonyl-1-ethoxide gave β-keto ester 2 or ketone 5... |
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A convenient synthesis of nicotinate esters from 3??cyanopyridones
: Journal of Heterocyclic Chemistry, , vol. 24, p. 351 - 355
... Since the hydrogenative dehalogenation of 2-halo-3- pyridinecarbonitriles can suffer losses due to reduction of either nitrile function or heterocyclic ring or both [5], we looked ... Paine III Vol. ... 6 Hz, 5-СНД 2.98 (2Н, t, J = 6 Hz, 8-СНД 7.62 (H, d,... |
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The synthesis of some alkylbenzocarbazoles
: Katrizky, Alan R.; Wang, Zuoquan Journal of Heterocyclic Chemistry, 1988 , vol. 25, # 2 p. 671 - 675
Mar-Apr 1988 The Synthesis of some Alkylbenzocarbazoles Alan R. Katritzky* and Zuoquan Wang Department of Chemistry, University of Florida, Gainesville, FL, 32611 Received March 24, 1987 The preparation is described of five known and eight novel carbazole der... |
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Preparation of pyrrole and pyrrolidine derivatives of pyrimidine. 1??(2??pyrimidinyl) pyrrole??an inhibitor of X. phaseoli and X. malvacearum
: Journal of Heterocyclic Chemistry, , vol. 41, # 3 p. 343 - 348
... 18 H. Amazu and J. Inone, Chem ... aryloxy-6-methylpyrimidin-2-amines and their fragmentation under positive electrospray ionization, Russian Journal of Organic ... 3 M. d'Ischia, A. Napolitano, A. Pezzella, Comprehensive Heterocyclic Chemistry III, 2008,... |
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The reaction of certain heterocyclic azides with triphenylphosphine
: VanAllan,J.A.; Reynolds,G.A. Journal of Heterocyclic Chemistry, 1968 , vol. 5, p. 471 - 476
Abstract Azidobenzothiazole and azidobenzimidazole and certain of its derivatives react with triphenyl-phosphine to give isolatable adducts which decompose thermally to give the corresponding phosphinimines. 2-Azidobenzoxazole gives an adduct which loses nitr... |
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4??Acyl??1, 2, 3??thiadiazoles from 4??aminoisothiazoles
: Lee,F.T.; Volpp,G.P. Journal of Heterocyclic Chemistry, 1970 , vol. 7, p. 415 - 418
When preparing heterocyclic disulfides, we encountered an interesting rearrangement involving the 4-isothiazolediazonium salt and thiourea. Aromatic diazonium salts have long been known to react with aqueous thiourea to give the corresponding thiophenols (I).... |
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Réarrangement de thiénobenzothiépinones en thiénoisothiazolinone et benzoisothiazolinone
: Daich, Abdelali; Decroix, Bernard Journal of Heterocyclic Chemistry, 1991 , vol. 28, # 8 p. 1881 - 1884
Abstract Dans les conditions de la réaction de Schmidt les thiénobenzothiépinones 1, 2 et 13 subissent un réarrangement respectivement en N-benzylthiéno [2, 3-d] isothiazolin-3-one (5) et benzoisothiazolin-3-one (6). Un mécanisme de ce réarrangement est propo... |