Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Andrew A. Tolmachev"'
Publikováno v:
Heteroatom Chemistry. 13:223-228
Phosphorylation of N-arylpyrroles with phosphorus tribromide proceeds regioselectively at the position 2 of the heterocyclic system. A 2-to-3 migration of the dibromophosphino group has been discovered, with its ease depending on the electronic natur
Publikováno v:
Heteroatom Chemistry. 13:46-52
A reaction of phosphorus tribromide with a compound containing two 2,5-dimethyl-1-arylpyrrolyl-3 residues bound through a phosphorus atom gave rise to a new phosphorus-containing heterocyclic system, 1,4-diphosphinine. The new products thus obtained
Autor:
Sergey P. Ivonin, Andrew A. Tolmachev, Alexandra A. Chaikovskaya, Tamara N. Kudraya, Andrew A. Anischenko, Eduard B. Rusanov, Alexander N. Chernega, Alexandr, M. Pinchuk
Publikováno v:
Heteroatom Chemistry. 12:658-664
It is has been shown that the interaction of phenylhydrazones of pyrrolecarbaldehydes and indolecarbaldehydes with trivalent phosphorus halides results in annelation of the 1,2,3-diazophosphorine ring.
Autor:
Andrew A. Tolmachev, A. A. Chaikovskaya, Anatoliy Marchenko, Georgiy N. Koydan, Alexander M. Pinchuk, Tatjana E. Terikovska, Sergey P. Ivonin
Publikováno v:
Heteroatom Chemistry. 10:213-221
Publikováno v:
Phosphorus, Sulfur, and Silicon and the Related Elements. 147:327-330
C-Phosphorylation of formamidines by trivalent phosphorus halides was researched. Direction of the phosphorylation depends on nature of substituents at the amidine nitrogens. C-Phosphorylated products was shown to be of valuable possibilities to cons
Publikováno v:
Heteroatom Chemistry. 9:461-470
Autor:
A. I. Sviridon, Andrew A. Tolmachev, Alexander M. Pinchuk, Alexander N. Kostyuk, A. A. Yurchenko
Publikováno v:
Phosphorus, Sulfur, and Silicon and the Related Elements. 109:477-480
Simple method of C-phosphorylation of azoles by trivalent phosphorus halides in the pyridine solution have been developed. Hetaryldihalogen, dihetarylhalogen-, trihetarylphosphines, which were transformed into new types of P(III) and P(IV) derivative
Autor:
Sergey P. Ivonin, Andrew A. Tolmachev, Alexander M. Pinchuk, Tat'jana E. Terikovskaja, Alexandra A. Chaikovskaja
Publikováno v:
Heteroatom Chemistry. 7:525-531
Publikováno v:
Heteroatom Chemistry. 6:407-412
Phosphorus trichloride in a basic medium is a convenient reagent for the direct C-phosphorylation of electron-rich aromatic heterocycles. The compounds obtained can be used for the synthesis of various types of heteroaryl and diheteroaryl derivatives
Autor:
A. S. Merkulov, E. S. Kozlov, A. A. Yurchenko, Aleksander M. Pinchuk, Marina Semenova, Andrew A. Tolmachev
Publikováno v:
Heteroatom Chemistry. 6:419-432
The reaction of phosphorus(III) halides with imidazo[1,2-a]pyridines in the presence of bases leads to the formation of 3-phosphorylated imidazo[1,2-a]pyridines. The reaction proceeds in high yield and requires no catalysts. In the compounds obtained