Showing papers by "Rashid Z. Musin published in 2002"
TL;DR: In this paper, the major products of the reaction of 2,2,4,5,6,7-heptachlorobenzo[d]-1,3,2λ5-dioxaphosphole with phenylacetylene were shown by NMR and IR spectroscopy and high-resolution mass spectrometry.
Abstract: As shown by NMR and IR spectroscopy and high-resolution mass spectrometry, the major products of the reaction of 2,2,2,4,5,6,7-heptachlorobenzo[d]-1,3,2λ5-dioxaphosphole with phenylacetylene are a six-membered heterocyclic compound, 2-oxo-4-phenyl-2,5,6,7,8-pentachlorobenzo[e]-1,2λ5(2H)-oxaphosphorine, and the E and Z isomers of 2-(2,3,4,4,5-pentachlorocyclohexadienon-6-yl)-2-phenylvinylphosphonic dichloride. The molecular and supramolecular structure of the heterocycle and phosphorus-containing products of its hydrolysis were studied by single crystal X-ray diffraction.
4 citations
TL;DR: In this paper, a three-component system tetrachloro-o-benzoquinone-arylacetylene-phosphorus trichloride was investigated with the use of NMR and IR spectroscopy and high resolution mass spectrometry.
Abstract: Reaction in a three-component system tetrachloro-o-benzoquinone-arylacetylene-phosphorus trichloride was investigated with the use of NMR and IR spectroscopy and high resolution mass spectrometry. It was established that prevailingly formed 4-aryl-2-oxo-2,5,6,7,8-pentachlorobenzo[e]-1,2-oxaphosphorin-3-enes which on hydrolysis furnished 2-aryl-2-(1-hydroxy-2,3,4,5-tetrachlorophenyl)vinylphosphonic acids.
2 citations
1 citations
TL;DR: In this article, the authors showed that the reaction of quinone I with phosphorus trichloride and phenylacetylene as a third component under mild conditions (20°e ) yields a new heterocyclic system, 1,2-oxaphosphatriphenylene (IIa ), which can be formed as an intermediate, is unstable and undergoes complex transformations.
Abstract: It is known that the interaction of ortho -quinones with derivatives of trivalent phosphorus occurs rather readily and usually results in the formation of phosphoranes [1]. These derivatives of pentacoordinated phosphorus atom containing dioxaphospholene cycles are used in organic synthesis [2]. Recently, we showed that the reaction of phenanthrenequinone ( I ) with phosphorus trichloride and phenylacetylene as a third component under mild conditions ( 20°e ) yields a new heterocyclic system, 1,2-oxaphosphatriphenylene ( IIa ) [3]. Its content in the reaction mixture ranges up to 40–45%. Together with the formation of the phosphoryl group and the P–C bond, carbon is substituted for one of the oxygen atoms in phenanthrenequinone and chlorine is introduced selectively into the seventh position of the 1-oxa2-phosphatriphenylene heterocycle ( II ). The product of the interaction of quinone I with phosphorus trichloride, phosphorane III , which can be formed as an intermediate, is unstable and undergoes complex transformations in the absence of phenylacetylene.