Method of preparing dialkyl dicarbonates

Details Method of preparing dialkyl dicarbonates Method of preparing dialkyl dicarbonates

1988-12-07

1990-05-29

Garner, Vivian

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbonate esters

568613, C07C 6804, C07C 6996

Patent

active

049297481

ABSTRACT:
A dialkyl dicarbonate (dialkyl pyrocarbonate) is prepared by contacting an alkyl haloformate (such as ethyl chloroformate) with an alkali metal carbonate (such as potassium carbonate) in the presence of a catalytic amount of a crown ether (such as 18 crown 6) and a solvating amount of a solvent (such as acetonitrile). The process of the invention is easy to carry out, it does not employ particularly hazardous materials, and provides a high yield of dicarbonate.

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