methanol; carbon monoxide in methanol; benzene addn. of CAN to soln. of cumulene complex in alcohol and benzene, bubbling of CO, stirred for 4h at room temp.; diln with H2O, extn. (Et2O), chromy. (silica gel);
Salkind; Chasowa
Zhurnal Obshchei Khimii, 1948 , vol. 18, p. 2136,2139
Chem.Abstr., 1949 , p. 3782
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Mamedow
Chem.Abstr., 1943 , p. 1699
