Ms. Cheong et al., RHODIUM-CATALYZED DOUBLE CARBONYLATION OF DIIODOMETHANE IN THE PRESENCE OF TRIETHYLORTHOFORMATE, Journal of organometallic chemistry, 520(1-2), 1996, pp. 253-255
Catalytic double carbonylation of diiodomethane in triethylorthoformat
e in the presence of a homogeneous rhodium complex gives diethylmalona
te in a fairly good yield.