Skeletal reorganization of mercaptoacetaldehyde dialkyl acetal in acid: Formation of disulphide, 1,2-bis(mercapto)ethylene and 1,1,2-tris(mercapto)ethane derivatives
Cw. Ong et al., Skeletal reorganization of mercaptoacetaldehyde dialkyl acetal in acid: Formation of disulphide, 1,2-bis(mercapto)ethylene and 1,1,2-tris(mercapto)ethane derivatives, J CHIN CHEM, 46(4), 1999, pp. 601-605
The reaction of mercaptoacetaldehyde dialkyl acetals la-e in the presence o
f sulfuric acid, polyphosphoric acid and zinc chloride is described. Other
than the disulfide reported previously, new compounds 1,2-bis-(mercapto)eth
ylene, 1,2,3-tris-(mercapto)ethane and 1,2-bis-(mercapto)methane have been
isolated for the first time.