Solution-stable trinuclear zinc(II) cluster from 4-methyl-2-N-(2-pyridylmethylene)aminophenol (HPyrimol)

The reaction of zinc(II) acetate with 4-methyl-2-N-(2-pyridylmethyl)aminophenol (HPyramol) in methanol leads to a solution stable linear trinuclear zinc cluster with intramolecular ligand oxidation.     

Nickel(II) and copper(II) complexes of 2-acetylpyridine 4 N-(2-methylpyridinyl)-, 4 N-(2-ethylpyridinyl)- and 4 N-methyl(2-ethylpyridinyl) thiosemicarbazones

Summary Ni^II and Cu^II complexes of 2-acetylpyridine ⁴ N-(2-methylpyridinyl)-, ⁴ N-(2-ethylpyridinyl)- and ⁴ N-methyl(2-ethylpyridinyl) thiosemicarbazones (HL4pam, HL4pae, and HL4Mpae, respectively) of general formula [M(HL)X₂] have been isolated from boiling EtOH and characterized by physico-chemical and spectroscopic methods. The growth inhibition activities of the thiosemicarbazones and their complexes were measured against Aspergillus nicer and Paecilomyces variotii.     

Structure of 9-(4-pyridylmethylene)fluorene and 9-(E)-benzylidene-1-azafluorene. Oxidation of 9-(4-pyridylmethylene)fluorene and its condensation with acetylenedicarboxylic acid diester

It was found by x-ray diffraction analysis that in the fulvenes studied, the aromatic rings of the condensed tricyclic fragment are not in the same plane. The angle between them is approximately 4°. The exocyclic carbon atom is at the same angle relative to the plane of the five-membered ring. Starting from 9-(4-pyridylmethylidene)fluorene, there were obtained 3-(4-pyridyl)spirooxirane[2,9]fluorene and 1,2,3,4-trimethoxycarbonyl-8-(fluorylidene-9-methylene)-9a-H-quinolizine.Russian University of Peoples' Friendship, Moscow 117923. Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 7, pp. 962–966, July, 1998.     

Pd-Cu-catalyzed synthesis of N-(2E,4)- and N-(2Z,4)-enyne cyclic amines

By Pd-Cu-catalyzed coupling of (2E)- and (2Z)-3-chloroprop-2-en-1-ylamines and alkynes a stereoselective method of the synthesis was developed for a series of (2E,4)- and (2Z,4)-enyne cyclic amines.     

Synthesis of N-(2-Benzene-2,2-dichloroethylidene)-4-chlorobenzenesulfonamide and N-(2-Benzene-2,2- dichloroethylidene)-4-methylbenzenesulfonamide

In reaction of N,N-dichloro-4-chlorobenzene- and N,N-dichloro-4-methylbenzenesulfonamides with phenylacetylene were obtained in good yield N-(2-benzene-2,2-dichloroethylidene)arenesulfonamides. The latter undergo nucleophilic addition of water, ethanol, and arenesulfonamides.     

The molecular and crystal structure of N-(4-n-butyloxybenzylidene)-4'-ethylaniline (4O.2) and N-(4-n-heptyloxybenzylidene)-4'-hexylaniline (7O.6)

757047134     

Synthesis of 4-aryl-2-hydroxy-4-oxo-2-butenoic (Aroylpyruvic) acids N-(4-Acetylaminosulfonylphenyl)amides

Methyl aroylpyruvates react with sodium 4-aminobenzenesulfonylacetamide in acetic acid to afford 4-aryl-2-hydroxy-4-oxo-2-butenoic acids N-(4-acetylaminosulfonylphenyl)amides. The latter were studied in reactions with hydrazine hydrate.     

Synthesis of N-[4-(2-naphthyl)]- and N-[4-(2-thienyl)methylaminobenzoyl]-dl-glutamic acids

N-[4-(2-Naphthyl)]-(IIa) and N-[4-(2-thienyl)methylaminobenzoyl]-dl-glutamic acids (IIb) have been synthesized for biological tests by the reaction of the corresponding halogen derivatives with diethyl p-aminobenzoyl-dl-glutamate (III) with subsequent hydrolysis of the esters obtained.     

Synthesis and properties of N-(2-chloro-5-fluoro-4-pyrimidyl)- and N-(2-ethylthio-5-fluoro-4-pyridmidyl)-substituted amino acids

Synthetic routes to and the properties of N-(2-chloro-5-fluoro-4-pyrimidyl)- and N-(2-ethylthio-5-fluoro-4-pyrimidyl)-substituted amino acids are shown.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 2, pp. 258–261, February, 1971.