Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1981-03-24
1982-07-27
Siegel, Alan
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
C07C 5700
Patent
active
043417205
ABSTRACT:
In a process for the preparation of oxalyl chloride from an oxalic acid compound of the formula ##STR1## wherein R.sup.1 and R.sup.2 are identical or different and represent hydrogen or a lower alkyl radical,
and phosphorus pentachloride in the presence of phosphorus oxychloride, the improvement wherein the reaction is carried out in the presence of an amino compound of the formula ##STR2## wherein R.sup.3 represents alkyl, aralkyl, aryl or an acyl group, optionally substituted by amino or carboxamido and
REFERENCES:
patent: 1888713 (1932-11-01), Britton et al.
patent: 1936739 (1933-11-01), Townend
Wagner & Zook, "Synth. Org. Chem.", (1965), pp. 546, 547.
Mannes Karl
Steffan Guido
Trescher Viktor
Vogel Axel
Bayer Aktiengesellschaft
Siegel Alan
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