Издательство Taylor&Francis по журналам "Phosphorus, Sulfur, and Silicon and the Related Elements"
Отображаемые элементы 1-20 из 3429
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(Taylor & Francis Group, 1989-10-01)Reactions of diphenylantimony chloride with the sodium salts of O,O-dialkyldithiophosphoric acids in 1: 1 molar ratio in benzene solution yield neutral complexes with the general formula (RO)2PS2SbPh2 (where R = CH3, C2H5, ...
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(Taylor & Francis Group, 1993-01-01)1,1-bis(methylthio)-2-nitroethene gives a stable hydro-xynitrilium ion in trifluoromethanesulfonic acid. This cation can be trapped by various nucleophiles to yield a-oximinoorthothioesters.
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(Taylor & Francis Group, 1991-06-01)The title compound is obtained from the reaction of phenyliodonium bis(phenylsulfonyl)methanide and diethylamine. Its structure and properties suggest that it is a fully delocalized system.
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(Taylor & Francis Group, 1995-07-01)Fluorinated acetophenones are converted into vinylphosphonates 3 which by nucleophilic addition of diethyl phosphite and subsequent fluoride ion elimination lead to the title compounds 1 and 2. 1 and 2 were identified by ...
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(Taylor & Francis Group, 1994-08-01)Polymethyl-1,1′-diheteroferrocenes have been prepared. Their X-ray structures and chemistry are compared.
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(Taylor & Francis Group, 1991-08-01)Reaction of 2-acetylpyridine with 4-methyl-4-phenyl-3-thiosemicarbazide afforded 1-methyl-1-phenyl-6-[1-(2-pyridinylethylidene)amino]-2,5-dithiobiurea (2a) rather than the expected thiosemicarbazone, 2-acetylpyridine ...
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(Taylor & Francis Group, 1994-06-01)Bis(trimethylstannylethynyl)phenylphosphane (1) reacts regio- and stereoselectively via 1,1-organo-boration with one equivalent of triethylborane (4a) or triisopropylborane (4b) to give the (Z)-alkene derivatives 5a and ...
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(Taylor & Francis Group, 1990-09-01)Reports [1-5] concerning the preparation of benzo-1,3,2-benzoxazaphosphonaline containing a substituent on nitrogen have been published. The synthesis of parent compund, 1,2-dinydro-1,3,2-benzoxazaphosphorine, has not been ...
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(Taylor & Francis Group, 1994-08-01)Azaphospholes with an anellated pyridine ring have become available only recently1. Representatives of six a-fused azaphospholopyridine are known:
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(Taylor & Francis Group, 1996-08-01)The thermal reactions (at 120°C) of the 1,2,3-selenadiazole 8 with the phosphaalkynes 6a and 6b gave rise to the previously unknown title compounds in 17% and 16% yield, respectively. These compounds are formed by a sequence ...
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(Taylor & Francis Group, 1992-01-01)Our attempt to synthesize 1,2λ5,5λ5-azadiphospholium ions by a cycloaddition reaction analogous to that leading to 1,2λ5-azaphospholines1 was not successful. An effective route is provided by the reaction of the ...
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(Taylor & Francis Group, 1994-01-01)The title compounds are obtained from structures incorporating the 3-aminopropenenitrile moiety by treatment with the Lawesson's reagent in refluxing toluene.
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1,2-DIHYDROXY-ETHANE-1,2-DIPHOSPHONIC ACID DERIVATIVES: STEREOCHEMICAL INVESTIGATIONS BY NMR METHODS(Taylor & Francis Group, 1990-03-01)A variety of NMR spectroscopic methods has been used to investigate the stereochemistry of a series of derivatives of 1,2-dihydroxy-ethane-1,2-diphosphonic acid, a structural analogue of tartaric acid. These derivatives ...
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(Taylor & Francis Group, 1991-03-01)The synthesis and properties of a key intermediate for arsonolipids, rac-1,2-dihydroxypropyl-3-arsonic acid and its salts, are described. The mechanism of the Meyer reaction with β-hydroxy alkyl halides is discussed.
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(Taylor & Francis Group, 1991-02-01)1.1,3.3-Tetrakis(dimethylamino)-diphosphete, 4. reacts with henzonitrile and p-trifluoromethylbenzo-nitrile to give 2.2.4.J-tetrakis(dimethylamino)-h-phenyl-1.2λ5.4λ5-azadiphosphorine. 5. and 2.2.4.4-tetrakis(dimethylami ...
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(Taylor & Francis Group, 1990-09-01)The paper is concerned with rhodium(1) complexes of the type acacRh(CO)L, Rh(CO)ClL2, [Rh(CO)LCl]2, [acacRh(CO)[2L and [Rh(CO)LCl]n, where L: P are monodentate, P,N- and P,P-bidentate ligands including 1,3,2-diheterophospholane ...
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(Taylor & Francis Group, 1991-10-01)In an oxidative addition reaction O,O′-bis(trimethylsilyl)diacetyldioxime 2 and triethylphosphite give 1,3,2-Δ5[sgrave]5-diazaphospholene 3a which hydrolyzes to form (Z)-2,3-bis(hydroxylamino)-2-butene 4. Benzaldehyde and ...
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(Taylor & Francis Group, 1991-12-01)A new method for the synthesis of 1,3,4-thiadiazoles is described. Thus condensation of 4-methyl-4phenyl-3-thiosemicarbazide with an aldehyde or ketone affords 1,1-disubstituted-6-[1-(arylethylidine) amino] −2,5-dithiobiureas, ...
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(Taylor & Francis Group, 1989-04-01)Bis(diethylamino)phosphanylacetylene and N,N'-dimethyl thiourea react to give the [1,3,4]thiazaphospholidine 3. Chemical reactions of 3 with various reagents lead to six other members of the title compound class. With ...
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(Taylor & Francis Group, 1994-05-01)The synthesis of the ethinylaminophosphanes 1-5 from substituted alkinylmagnesium bromides and halogenoaminophosphanes is described. Reaction of 1 with various derivatives of urea yields the [1,3,4]thiazaphospholidines 6, ...
Отображаемые элементы 1-20 из 3429