616-42-2 Usage
Chemical Properties
CLEAR COLORLESS TO PALE YELLOW LIQUID
Uses
The conformations and vibrational spectra of dimethyl sulfite was studied by matrix-isolation fourier transform infrared spectroscopy and to study its conformational selective aggregation. It may be used in organic synthesis.
Preparation
Dimethyl sulfite is prepared from a 1:2 ratio of thionyl chloride and methanol. The reaction can be catalyzed by tertiary amine bases and likely proceeds via the chlorosulfinate (MeOS(O)Cl), this intermediate will exist only fleetingly in the presence of methanol and as such its decomposition to methyl chloride and sulfur dioxide (via the slower SNi mechanism) is not observed to any great extent. SOCl2 + 2 CH3OH → (CH3O)2SO + 2 HCl
Application
The conformations and vibrational spectra of dimethyl sulfite was studied by matrix-isolation fourier transform infrared spectroscopy and to study its conformational selective aggregation. Dimethyl sulfite may be used in organic synthesis. It is used as an additive in some polymers to prevent oxidation. It is also a potentially useful high energy battery electrolyte solvent.
General Description
Dimethyl sulfite is an insect repellent and also experimentally identified as a mutagenic agent.
Check Digit Verification of cas no
The CAS Registry Mumber 616-42-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,1 and 6 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 616-42:
(5*6)+(4*1)+(3*6)+(2*4)+(1*2)=62
62 % 10 = 2
So 616-42-2 is a valid CAS Registry Number.
InChI:InChI=1/C2H6O3S/c1-4-6(3)5-2/h1-2H3
616-42-2Relevant articles and documents
Huong,Raducanu
, p. 81,82,84,87 (1974)
Cationic and radical intermediates in the acid photorelease from aryl sulfonates and phosphates
Terpolilli, Marco,Merli, Daniele,Protti, Stefano,Dichiarante, Valentina,Fagnoni, Maurizio,Albini, Angelo
experimental part, p. 123 - 127 (2012/01/03)
The irradiation of a series of phenyl sulfonates and phosphates leads to the quantitative release of acidity with a reasonable quantum yield (≈0.2). Products characterization, ion chromatography analysis and potentiometric titration are consistent with the intervening of two different paths in this reaction, viz. cationic with phosphates and (mainly) radical with sulfonates. The Royal Society of Chemistry and Owner Societies 2011.
A mild method for conversion of alcohols to dialkyl sulfites by use of Na2SO3/SOCl2
Kiasat, Ali Reza,Kazemi, Foad,Khosravian, Froogh
, p. 427 - 431 (2007/10/03)
Alcohols are easily converted to their corresponding dialkyl sulfite under mild reaction conditions using Na2SO3/SOCl2 in moderate to good isolated yields.
