cas 7396-41-0, 1,3-DITHIOLE-2-THIONE-4,5-DICARBOXYLIC ACID DIMETHYL ESTER | Articles data ｜lookchem

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7396-41-0

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A NEW CONVENIENT METHOD FOR THE SYNTHESIS OF 1,3-DITHIOLANE-2-THIONES AND THEIR USE FOR THE SYNTHESIS OF 4,5-DIMETHOXYCARBONYL-1,3-DITHIOLE-2-THIONE
A preparative method was developed for the synthesis of 1,3-dithiolane-2-thione and 4-phenyl-1,3-dithiolane-2-thione from dibromoethane and 1-phenyl-1,2-dibromoethane and potassium xanthates.It was shown that their reaction with dimethyl acetylenedicarboxylate without a solvent leads to 4,5-dimethoxycarbonyl-1,3-dithiole-2-thione with yields close to quantitative.
Khodorkovskii, V.Yu.,Poikan, Ya.Ya.,Kreitsberga, Ya.N.,Neiland, O.Ya.
p. 1224 - 1226
(2007/10/02)

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Chemical Properties

Melting Point: 86-90 °C(lit.)
Boiling Point: 362.5°C at 760 mmHg
Flash Point:173°C
Density: 1.57g/cm³
Solubility:almost transparency in hot Methanol
Vapor Pressure: 1.93E-05mmHg at 25°C
Refractive Index: 1.659
BRN: 1288368
PSA: 141.17000
LogP: 2.11230

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