Process for the preparation of acetic anhydride

Details Process for the preparation of acetic anhydride Process for the preparation of acetic anhydride

1981-12-17

1986-09-02

Trousof, Natalie

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 5156

Patent

active

046095047

ABSTRACT:
The invention relates to a process for the preparation of acetic anhydride by carbonylation. In the process, carbon monoxide is reacted with methyl acetate in an anhydrous medium, in the liquid phase, in the presence of an effective amount of nickel, methyl iodide, a quaternary ammonium or quaternary phosphonium iodide and a lithium salt, the reaction medium initially containing acetic anhydride, if desired.

REFERENCES:
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patent: 4002677 (1977-01-01), Naglieri et al.
patent: 4002678 (1977-01-01), Naglieri et al.
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patent: 4239698 (1980-12-01), Isshiki et al.
patent: 4351953 (1982-09-01), Gauthier-Lafaye
Hackh's Chemical Dictionary, 4th Ed. (1969) McGraw-Hill, Publ., at p. 26.
Onouchi, Takeshi et al., Chemical Abstracts, vol. 80 (1974), #107,994f.
Gauthier-Lafaye, Jean et al., Chemical Abstracts, vol. 94 (1981), #156,327p. (Eur. Pat. Appln. No. 18,927 dtd. Nov. 12, 1980).
Falbe, Jurgen, "Carbon Monoxide In Organic Synthesis" (1970), p. 113, Springer, Publ.

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