67488-50-0 Usage
Chemical Properties
Light yellow solid
Uses
3-Methoxycarbonyl-3-sulfolene is a useful reactant for the synthesis of bicyclic and tricyclic compounds.
Purification Methods
If the IR shows OH bands, then dissolve the dioxide in CHCl2, wash it with aqueous Na2CO3 and H2O, dry it over MgSO4, filter, evaporate and wash the residue with cold Et2O and dry in vacuo. 1HNMR (CDCl3): 7.00 (m 1H), 3.98 (bs 4H) and 3.80 (s Me). [McIntoch & Sieber J Org Chem 43 4431 1978, Beilstein 18/6 V 5.]
Check Digit Verification of cas no
The CAS Registry Mumber 67488-50-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,4,8 and 8 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 67488-50:
(7*6)+(6*7)+(5*4)+(4*8)+(3*8)+(2*5)+(1*0)=170
170 % 10 = 0
So 67488-50-0 is a valid CAS Registry Number.
InChI:InChI=1/C7H10O4S/c1-5-6(7(8)11-2)3-4-12(5,9)10/h3-4H2,1-2H3
67488-50-0Relevant articles and documents
A practical large-scale synthesis of 3-carbomethoxy-3-sulfolene
Leonard, John,Hague, Andrew B.,Jones, Martin F.,Ward, Richard A.
, p. 507 - 509 (2007/10/03)
A simple, efficient one-flask procedure for the large-scale preparation of 3-carbomethoxy-3-sulfolene from trimethylphosphonoacetate is described. The procedure incorporates a cheap and simple sulfide to sulfone oxidation using Oxone. No chromatography or intermediate purification steps are involved and the product is isolated by crystallisation.
