Gordon S. Bates and S. Ramaswamy
J. Chem. Soc., Chem. Commun., 1980, 904-906
DOI:
10.1039/C39800000904,
Paper
Alkylation of the potassium anion of the glyoxal derivatives (4) with halides and sulphonate esters, followed by acidic hydrolysis, provides good yields of the corresponding pyruvaldehyde α-thioacetals.
