An elegant synthesis of some novel unsymmetrical bis-indol-2,3-diones (4a-d) has been achieved via 1-(6-bromohexyl)-1H-indol-2,3-diones (3a,b). These compounds have been further used for the synthesis of novel bis-spiroindoles ...

Second-, third-, and fourth-generation hyperbranched aliphatic polyols namely Boltorn® H20, Boltorn H30, and Boltorn H40 were endcapped with azido and activated acetylenic groups in good to excellent yields (75–95%) following ...

Thirteen triazole polymers were prepared as potential rocket propellant binders by the reactions of various diacetylenes and diazides. The reaction of E300 dipropiolate (1) with diazide (2) obtained from tetraethylene ...

Naphthoquinone-dipeptides are synthesized in 76-89% yield from naphthoquinone-amino acid conjugates by N-acylbenzotriazole methodology in aqueous media at 20 ˚C

Carbene-mediated transformations of N-(3-butylbenzimidazol-3-ium-1-yl)-1-arylmethanimine iodides with carbon disulfide and benzoyl isothiocyanate gave the corresponding NHC·CS2 betaines in 68−85% and benzoyl-[1-butyl-3-[ ...

The present review provides a comprehensive summary of microwave-assisted preparation of five-membered azaheterocyclic systems, such as pyrrole, pyrazole, imidazole, triazole, thiazole, isothiazole, oxazole, isoxazole, ...

Ligands that activate the serotonin 5-HT2C G protein-coupled receptor (GPCR) may be therapeutic for psychoses, addiction, and other neuropsychiatric disorders. Ligands that are antagonists at the closely related 5-HT2A ...

N-alkylation of azaphenothiazines using dibromoalkanes or dibromoalkenes did not result in the formation of bis-azaphenothiazines under known conditions such as refluxing, for more than 100 h, with NaNH2/xylene or NaH/toluene. ...

Xanthones (dibenzo-γ-pyrones) constitutes an important class of oxygenated heterocycles and occur as secondary metabolites in plants and microorganisms. They are known for various biological activities such as antioxidant, ...

The electronic absorption and fluorescence spectra of coumarin derivative, (S)-(1-((7-hydroxy-2-oxo-2H-chromen-4-yl)methyl)-1H-1,2,3-triazol-4-yl)methyl2-(((9H-fluoren-9-yl)methoxy)cabonylamino)-3-phenylpropanoate have ...