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....

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...

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...

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...

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,...

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...

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,...

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...

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)....

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...