SYNTHESIS OF ASYMMETRIC ORGANIC CARBONATE AND PREPARATION OF NONAQUEOUS ORGANIC ELECTROLYTE FOR ALKALI ION ELECTROCHEMICAL CELL

Title:

SYNTHESIS OF ASYMMETRIC ORGANIC CARBONATE AND PREPARATION OF NONAQUEOUS ORGANIC ELECTROLYTE FOR ALKALI ION ELECTROCHEMICAL CELL

Document Type and Number:

Japanese Patent JPH10338663

Kind Code:

A

Abstract:

To provide a process for synthesizing asymmetrical (or mixed) organic carbonates that can increase the yield of the product and provide the process for preparation of a non-aqueous organic liquid electrolyte containing asymmetrical linear organic carbonate as a common solvent.

The objective asymmetrical organic carbonate is synthesized through the following steps: (a) the step that the first symmetric carbonate of the general formula: R1COOR1 is prepared; (b) the step that the second symmetric carbonate of the general formula: R2COOR2 is prepared; and (c) the step that the first symmetric carbonate and the second one are mixed in the presence of a catalyst selected from a nucleophilic reagent and an electron- donating reducing agent. In this process, R1 and R2 are preferably selected from saturated alkyl groups or aryl groups.

Inventors:

GAN HONG
MARKAS PALAZZO
TAKEUCHI ESTHER S

Application Number:

JP16605598A

Publication Date:

December 22, 1998

Filing Date:

May 28, 1998

Export Citation:

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Assignee:

GREATBATCH W LTD

International Classes:

C07C68/06; C07C69/96; H01M6/16; H01M10/052; H01M10/0569; H01M10/36; H01M10/0525; (IPC1-7): C07C69/96; C07C68/06; H01M6/16; H01M10/40

Attorney, Agent or Firm:

Yasuhiko Takeishi (1 outside)

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