Výsledky vyhledávání - "Raymond S. Matthews"

ChemInform Abstract: Azido and Dimethylamino Derivatives of Tellurium Hexafluoride

Autor: Ian B. Gorrell, Clifford J. Ludman, Raymond S. Matthews

Publikováno v: ChemInform. 24

It has been established by 19F NMR spectroscopy that TeF6 and Me3SiX (X = N3 or NMe2) react to form compounds TeFnX6 –n(n= 1–5). Reaction of TeF6 with Me3SiNMe2 in a 1 : 2 ratio gave a mixture of TeF5(NMe2), cis-TeF4(NMe2)2 and fac-TeF3(NMe2)3. W

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0e648be9cde52df4e1816519aa6c166f
https://doi.org/10.1002/chin.199304215

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Fluorine-19 NMR spectroscopy of polyhalonaphthalenes. Part III. A consideration of inter-ring SCSs in polychloropolyfluoronaphthalenes

Autor: Raymond S. Matthews

Publikováno v: Journal of Fluorine Chemistry. 55:163-167

Substituent chemical shifts for the hypothetical replacement of fluorine atoms by chlorineatoms are considered for the 19F shifts in a ‘matrix’ of data points from 21 compounds,from monochloroheptafluoro- to octafluoro-naphthalene. The use of int

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https://doi.org/10.1016/s0022-1139(00)80117-7

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Polyfluorinated heterocyclic compounds. Part 29[1]. The synthesis of 4,5,6,7,8-pentafluoro-2H-cyclohepta[b]furan-2-one and its reaction with sodium methoxide

Autor: Michael B. Hursthouse, Raymond S. Matthews, Mary E. Harman, Gerald M. Brooke

Publikováno v: Journal of Fluorine Chemistry. 53:339-354

Pentafluorophenyl propynoate (8), prepared from sodium pentafluorophenate and propynoyl chloride, on flash vacuum pyrolysis through silica gave 4,5,6,7,8-pentafluoro-2H- cyclohepta[b]furan-2-one (9). Treatment of (9) with sodium methoxide in methanol

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https://doi.org/10.1016/s0022-1139(00)80958-6

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Fluorine-19 NMR spectroscopy of polyhalonaphthalenes. Part II polychloropolyfluoronaphthalenes via nucleophilic fluoride dechlorination

Autor: Raymond S. Matthews

Publikováno v: Journal of Fluorine Chemistry. 50:381-392

Six new polychloropolyfluoronaphthalenes have been identified by F-19 NMR whose empirical formulae are C10 Cl8−n Fn where n is 5 and 6 i.e. two trichloropentafluoronaphthalenes and four dichlorohexafluoronaphthalenes:- • 1,3,8-trichloro-2,4,5,6,7

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https://doi.org/10.1016/s0022-1139(00)85005-8

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Fluorine-19 NMR spectroscopy of polychloropolyfluoronaphthalenes. The identification of fluorine exchange products

Autor: Raymond S. Matthews

Publikováno v: Journal of Fluorine Chemistry. 48:7-15

Fluorine-19 NMR of the products of halogen exchange between octachloronaphthalene and caesium fluoride or potassium fluoride is reported. Twelve polychloropolyfluoronaphthalenes, although in complex mixtures and largely inseparable, could be identifi

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https://doi.org/10.1016/s0022-1139(00)82597-x

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19F NMR spectroscopy of polyhalonaphthalenes. Part IV. Halex reactions of polychloroquinolines

Autor: Raymond S. Matthews

Publikováno v: Journal of Fluorine Chemistry. 91:203-205

Nucleophilic fluoride fluoro-dechlorination of four isoquinolines (5,6,7,8-tetrachloro-,3,5,6,7,8-pentachloro-,3,4,5,6,7,8-hexachloro- and 1,3,4,5,6,7,8-heptachloro-isoquinoline) led to the preparation of 15 new polychloropolyfluoro isoquinolines by

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https://doi.org/10.1016/s0022-1139(98)00225-5

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Azido and dimethylamino derivatives of tellurium hexafluoride

Autor: Ian B. Gorrell, Raymond S. Matthews, Clifford J. Ludman

Publikováno v: Journal of the Chemical Society, Dalton Transactions. :2899

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https://doi.org/10.1039/dt9920002899

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The preparation and reactions of 1,3,4,5,6,7,8-heptafluoro-2-naphthyl prop-2-enyl ether: Formation of 1,3,4,5,6,7,8-heptafluoro-1-(prop-2-enyl)naphthalen-2-one and the photolysis and pyrolysis of this ketone [1]

Autor: Nigel S. Robson, Raymond S. Matthews, Gerald M. Brooke

Publikováno v: Journal of Fluorine Chemistry. 16:461-477

1,3,4,5,6,7,8-Heptafluoro-2-naphthyl prop-2-enyl ether (8) was isomerised in boiling xylene to 1,3,4,5,6,7,8-heptafluoro- 1-(prop-2-enyl)naphthalen-2-one (9). Photolysis of (9) gave 2,5,7-trifluoro-3,4-(tetrafluorobenzo)tricyclo[3.3.1.O 2,7 ]non-3- e

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https://doi.org/10.1016/s0022-1139(00)82368-4

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Aromatic products of 340 °C supercritical-toluene extraction of two Turkish lignites: an n.m.r. study

Autor: Taner Tuǧrul, Derry W. Jones, Aral Olcay, Hooshang Pakdel, Raymond S. Matthews, Ayla Çalimli, Keith D. Bartle

Publikováno v: Fuel. 58:423-428

Fractions of Elbistan and Seyitomer (Turkish) lignites, extracted with supercritical toluene at 340 °C and 8 MPa, have been separated by solvent extraction and silica-gel chromatography. Analyses by n.m.r. and i.r. spectroscopies and other methods h

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https://doi.org/10.1016/0016-2361(79)90082-6

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