Results 41 to 50 of about 112 (84)
Some of the next articles are maybe not open access.
Journal of the Chemical Society Perkin Transactions II, 1994
The reactivities of 2-substituted cyclohex-1-enylacetic acids with diazodiphenylmethane in eleven alcohols has been investigated. The solvent effect is interpreted in terms of the influence of the relative permittivity on the rate constants. The multiple linear correlation of log k with the Kirkwood function of relative permittivity, Taft σ* value for ...
Gordana S Ušćumlić
exaly +2 more sources
The reactivities of 2-substituted cyclohex-1-enylacetic acids with diazodiphenylmethane in eleven alcohols has been investigated. The solvent effect is interpreted in terms of the influence of the relative permittivity on the rate constants. The multiple linear correlation of log k with the Kirkwood function of relative permittivity, Taft σ* value for ...
Gordana S Ušćumlić
exaly +2 more sources
Carbohydrate Research, 2001
A kinetic study of the tin(II) chloride catalyzed reaction of diazodiphenylmethane with ethylene glycol in dimethoxyethane is reported. The preparation and characterization of ethylene glycol monodiphenylmethyl ether, the main product from this reaction, is also reported as well as the preparation of the two diphenylmethyl monoethers of methyl 4,6-O ...
Sigthor Pétursson
exaly +3 more sources
A kinetic study of the tin(II) chloride catalyzed reaction of diazodiphenylmethane with ethylene glycol in dimethoxyethane is reported. The preparation and characterization of ethylene glycol monodiphenylmethyl ether, the main product from this reaction, is also reported as well as the preparation of the two diphenylmethyl monoethers of methyl 4,6-O ...
Sigthor Pétursson
exaly +3 more sources
Journal of the Chemical Society Perkin Transactions II, 1993
The reactivities of 2-substituted cyclohex-1-enecarboxylic acids with diazodiphenylmethane in several alcohols were investigated. The rate data for these acids were correlated with a simple Hammett equation by means of the σp constants. The transmission of polar effects through the double bond, in terms of polar susceptibility constant ρ, has been ...
Gordana S Ušćumlić
exaly +2 more sources
The reactivities of 2-substituted cyclohex-1-enecarboxylic acids with diazodiphenylmethane in several alcohols were investigated. The rate data for these acids were correlated with a simple Hammett equation by means of the σp constants. The transmission of polar effects through the double bond, in terms of polar susceptibility constant ρ, has been ...
Gordana S Ušćumlić
exaly +2 more sources
Journal of the Chemical Society Perkin Transactions 1, 1975
Diazodiphenylmethane has been prepared from benzophenone hydrazone by oxidation with peracetic acid in the presence of a base and a trace of iodine. Two variants of the process are described: (a) benzophenone hydrazone in an organic solvent is oxidised with peracetic acid in the presence of 1,1,3,3-tetramethylguanidine and a trace of iodine; (b) a ...
J. Robert Adamson +5 more
exaly +2 more sources
Diazodiphenylmethane has been prepared from benzophenone hydrazone by oxidation with peracetic acid in the presence of a base and a trace of iodine. Two variants of the process are described: (a) benzophenone hydrazone in an organic solvent is oxidised with peracetic acid in the presence of 1,1,3,3-tetramethylguanidine and a trace of iodine; (b) a ...
J. Robert Adamson +5 more
exaly +2 more sources
Nature of the ortho effect. XI. Reaction rates of carboxylic acids with diazodiphenylmethane
Journal of Organic Chemistry, 1975Marvin Charton
exaly +2 more sources
A LFER Kinetic Study of The Reaction of 5‐Substituted Orotic Acids with Diazodiphenylmethane
International Journal of Chemical Kinetics, 2016ABSTRACTLinear free energy relationships (LFER) were applied to the kinetic data for the reaction of 5‐substituted orotic acids, series 1, with diazodiphenylmethane (DDM) in N,N–dimethylformamide and compared with results obtained for 2‐substituted benzoic acids, series 2.
Assaleh, Fathi H. +6 more
openaire +2 more sources
Journal of the Chemical Society, Perkin Transactions 2, 1981
Thermal decomposition at 80 °C of diazodiphenylmethane in oxygen-saturated chlorobenzene in the presence of sulphur compounds (5)–(8) affords tetraphenylethylene, benzophenone, benzophenone azine, as well as small amounts of bisdiphenylmethyl ether.
Luisa Benati +2 more
openaire +1 more source
Thermal decomposition at 80 °C of diazodiphenylmethane in oxygen-saturated chlorobenzene in the presence of sulphur compounds (5)–(8) affords tetraphenylethylene, benzophenone, benzophenone azine, as well as small amounts of bisdiphenylmethyl ether.
Luisa Benati +2 more
openaire +1 more source
Journal of the Chemical Society, Perkin Transactions 2, 1978
The kinetics of the reactions of meta- and para-substituted diazodiphenylmethanes (DDM) with tetracyanoethylene (TCNE) in benzene are reported. The corresponding 1,1-diaryl-2,2,3,3-tetracyanocyclopropanes were produced almost quantitatively and the second-order rate constants k increased with the electron-donating ability of the substituents; the ...
Takumi Oshima +2 more
openaire +1 more source
The kinetics of the reactions of meta- and para-substituted diazodiphenylmethanes (DDM) with tetracyanoethylene (TCNE) in benzene are reported. The corresponding 1,1-diaryl-2,2,3,3-tetracyanocyclopropanes were produced almost quantitatively and the second-order rate constants k increased with the electron-donating ability of the substituents; the ...
Takumi Oshima +2 more
openaire +1 more source