Process for the preparation of dialkyl dicarbonates

Details Process for the preparation of dialkyl dicarbonates Process for the preparation of dialkyl dicarbonates

1994-12-01

1996-06-04

Dees, Jose G.

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

Organic compounds

Carboxylic acid anhydrides

562888, C07C 5156, C07C 5154

Patent

active

055234810

ABSTRACT:
Dialkyl dicarbonates are obtained particularly advantageously from halogenoformic esters by reaction with alkalis in the presence of water-immiscible organic solvents and in the presence of a catalyst, if the catalyst used is benzylalkyldimethylammonium halides. The catalyst is then particularly easy to separate off and to recycle from the reaction mixture.

REFERENCES:
patent: 3326958 (1967-06-01), Curtius et al.
Daniel Plusquellec et al., "A New Synthesis of Carboxylic and Carbonic Acid Anhydrides Using Phase Transfer Reactions", Tetrathedron, Bd. 44, No. 9., pp. 2471-2476 1988. *das ganze Dokument*.

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