cas 72437-68-4, METHYL PENTYL DISULPHIDE | Articles data ｜lookchem

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72437-68-4

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TWO SULFUR CONSTITUENTS FROM ALLIUM SCHOENOPRASUM
Two kinds of disulfide has been isolated from Allium schoenoprasum and their structures established as methyl pentyl disulfide and pentyl hydrodisulfide by spectroscopic and synthetic methods.These compounds, which smell like sweet onions, are important aroma constituents. Key Word Index - Allium schoenoprasum; Alliaceae; steam volatile oil; methyl pentyl disulfide; pentyl hydrodisulfide.
Kameoka, Hiromu,Hashimoto, Seiji
p. 294 - 295
(2007/10/02)

NEW SIMPLE SYNTHESIS OF UNSYMMETRICAL DISULFIDE
Unsymmetrical disulfides from the co-photolysis of mixtures of symmetrical alkyl disulfides is reported.Rates have been obtained for 35 combinations of C2 to C10 alkyl disulfides and their isomers.An equilibrium is attained after relatively short irradiation periods in cyclohexane.
Gupta, D.
p. 31 - 36
(2007/10/02)

Reaction of thiyl radicals. XIII. Photochemically induced exchange reactions of liquid alkyl disulfides
The liquid phase photolysis of some 35 liquid alkyl disulfide mixtures has been studied.The corresponding unsymmetrical disulfide is the only significant product of the reaction and the system attains a photo-equilibrium state at longer exposure times.Product formation is completely eliminated by the addition of nitric oxide.Quantum yields have been redetermined for the methyl disulfide- ethyl disulfide system using four different light sources.Initial rates have been measured for each of the 35 combinations and have been shown to be a function of total molecular weight of the disulfide mixture and to be strongly influenced by steric factors.These effects are most pronounced for mixtures wherein the exchange reaction between thiyl radical and a symmetrical disulfide is important as indicated by quantum yields above unity.Combinations of isodisulfides give rise to anomalously high rates.
Gupta, Dinesh,Knight, Arthur R.
p. 1350 - 1354
(2007/10/02)

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Chemical Properties

Melting Point: -77.24°C (estimate)
Boiling Point: 190.9 °C at 760 mmHg
Flash Point:68.2 °C
Density: 0.966 g/cm³
Refractive Index: 1.4900
PSA: 50.60000
LogP: 3.18780

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