2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ) as a highly efficient and mild catalyst for diethyl acetalization of carbonyl compounds

Article abstract of DOI:10.1246/cl.1999.1199

Various types of structurally different carbonyl compounds in the presence of ethyl orthoformate (EtO)₃CH could be efficiently converted to their diethyl acetals by using a catalytic amount (1-3 mol%) of DDQ under mild reaction conditions.