Synthesis of nitrogenous heterocycles of a new type by cyclocooligomerization of 1,3-dienes with furfuraldimines in the presence of nickel complexes

Conclusions A new one-step synthesis of 8- and 14-membered nitrogenous heterocycles involving the cooligomerization of 1,3-dienes with furfuraldimines in the presence of nickel-containing complex catalysts has been developed.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 11, pp. 2557–2562, November, 1978.     

Synthesis and crystal structure of some phosphite,thiophosphite, and amidophosphite copper(I) halide complexes

Some Cu(I) halides complexes based on P(III) acid esters,{[(RE)₃PCuBr] (where E = O, N, S); R = n‐Pr, i‐Pr, Et₂N} were obtained and characterized using IR, ³¹P NMR spectroscopy, and single crystal X‐ray diffraction. The comparative structural characteristics of complexes with various donor atoms (E = O, N, S) are analyzed. © 2008 Wiley Periodicals, Inc. Heteroatom Chem 19:483–489, 2008; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/hc.20459     

First representative of phosphorylated formic acid hydrazides with three P—C bonds: synthesis and addition to the phosphorylated 4-methylenequinones

Russian Chemical Bulletin - Diethylphosphinylmethanehydrazide, the first representative of the phosphorylated formic acid hydrazides with three P—C bonds was obtained, which can exhibit...     

New Reaction of Dimethylformamide with Acrylic Acid

Russian Journal of Organic Chemistry - A new homogeneous reaction of dimethylformamide (DMF) with acrylic acid was studied. The reaction afforded previously unknown...     

Phase behaviour,structural properties and intermolecular interactions of systems based on substituted thiacalix[4]arene and nonionic surfactants

Supramolecular organised materials were prepared from nonionic surfactants and the following macrocyclic ionic liquids: n-tert-butylthiacalix[4]arenes containing quaternary ammonium fragments with amino acid substituents. Tetraethylene glycol monododecyl ether and decadiethylene glycol monododecyl ether were used as nonionic surfactants. They form lamellar and hexagonal mesophases in aqueous media, respectively. Liquid crystal and structural properties of these systems were studied. Intermolecular interactions of system components leading to formation of lyomesophases were estimated. Molecular structure of thiacalixarene contributes to the formation of a hydrogen bonding with surfactants. This process, in turn, initiates formation of a denser packed hexagonal structure.     

Study of all stages of the Diels–Alder reaction of cyclopentadiene with 2,3-dicyano-1,4-benzoquinone and monoadducts: Kinetics,thermochemistry, and high pressure effect

The kinetic parameters and enthalpies of the Diels–Alder reactions between cyclopentadiene and 2,3-dicyano-1,4-benzoquinone leading to the formation of two different monoadducts and bisadduct were determined. The stability of adducts is compared. Monoadduct appears to be thermodynamically more stable than the bisadduct. Comparison with the other Diels–Alder reactions studied previously allows us to conclude that the heat effects upon formation of the considered Diels–Alder adducts are the lowest in comparison with all the studied dienophiles.