Showing papers in "Journal of Heterocyclic Chemistry in 1974"

TL;DR: In this article, the synthesis of macrocyclic sulfides is reviewed and a number of cyclic aliphatic dithioethers, macrocyclical mercaptals and mercaptoles, dithiacyclophanes, trisbridged polythiacy clophanes and dithia[2,6]pyridinophanes are presented.

TL;DR: The three compounds C8 H10N4 which arise from reaction of hydrazine and β-aminocrotonitrile have been identified: the formation of anazine, a 3(5)-amino 5(3)-methyl pyrazole derivative and a 7-amino pyrazolo [1,5-a] pyrimidine has been demonstrated.

TL;DR: In this article, a novel synthesis of 3-(hydroxymethyl)chromones from o-hydroxy-ω-(methylsulfinyl)acetophenones has been developed.

TL;DR: In this paper, a number of novel 2-aryl-3-(dimethylamino)acroleins and their hydrolyses to 3-chloro and 3-alkoxy acroleins are described.

TL;DR: Condensation of 4-bromo- (4) and 4-nilro-l,8-naphthalimides (5) with 2-aminobenzenethiol gave 4-(2-aminoulicnylthio)-1,8 naphthimides as mentioned in this paper, also obtained by reaction with benzo[k,l] thioxanthene-3,4-dicarboxylie anhydride (11)

TL;DR: In this article, the pyrazolo]-1,5-a]-1.3-Aminopyrazole was used as a starting material for the preparation of certain pyrazolines.

TL;DR: In this article, the intramolecular oxymercuration of γ-δ ethylenic alcohols, with different mercuric salts under different conditions, is presented.

TL;DR: In this article, the authors show that the azide is the only stable polyazole in N-acetyl and N-H derivatives under neutral conditions, and that 3-azido-3 pyrazoles are the only polyazoles in which coupling with the n-H in NMR is observed.

TL;DR: In this article, a 2-Chloro-2-imidazoline has been synthesized by the reaction of ethylene-thiourea with chlorine in aqueous solution at 50°.

TL;DR: In this article, the Photocyclisierung of Benzylidenaminopyridine and Pyridinalaniline in neutralen organischen Losungsmitteln is discussed.

TL;DR: In this paper, a novel synthesis of 2,3-disubstituted indoles starting from N-alkyl-N-propvnyl anilines is described.

TL;DR: A series of 6-substituted 3(2H)pyridazinones was prepared and the 6- substituent was either aromatic of heter-aromatic in structure or aromatic of aromatic in structure.

TL;DR: In this article, the canonical structure of 1,2,4-triazine with a N1N2 single bond more closely represents the ground state of this ring system than the one with a n 1N2 double bond.

TL;DR: Pyrido [3′,2′:4,5]thieno[3,2-d] pyrimidine and several of its derivatives have been synthesized as mentioned in this paper.

TL;DR: The nucleosides of 5-substituted 1,2,4-triazole-3-carboxamides were obtained by the acid-catalyzed fusion procedure and by glycosylation of the appropriate trimethylsilyl derivative as mentioned in this paper.

TL;DR: Azo derivatives prepared by coupling 2-diazoimidazole, 3(5))diazopyrazole, 4(5)diazotetrazole with β-naphthol have been cyclized to the corresponding naphthoazolo-as-triazines, an heterocyclic system related to azasteroids as mentioned in this paper.

TL;DR: In this article, various transformation products of these halothienopyridines (including the 2-nitro-3-halo compounds) are described and mass spectral fragmentation patterns are presented.

TL;DR: In this paper, a number of halo-substituted 1,2,3 and 1,3,4thiadiozoles have been prepared, their reactivity towards methoxide ion have been studied and the kinetic parameters are reported.

TL;DR: In this article, the structure du tautomere predominant, N(H) 1, est en accord avec les previsions theoriques and avec the donnees spectroscopiques UV and RMN.

TL;DR: The Pfitzner-Moffatt oxidation of 6-chloro-9-(2,3-O-isopropylidene-β-D-ribofuranosyl)-6-(methylthio)purine, and 2′,3′-o-idene groups gave the corresponding 5′-aldehydes (3, 13, and 4), which were allowed to react with a number of Wittig ylids as discussed by the authors.

TL;DR: In this paper, 3-bromothieno[2,3-b]pyridine and n-butyllithium were treated with hexane-tetramethylethylene-diamine at −70° plus subsequent addition of dimethylformamide produced 2-formyl-Ia (66%).