Process for producing cyclopropanecarbonitrile
AssigneeKuraray Co., Ltd.
InventorsTatsuhiko Hayashibara, Junko Sato, Eriko Matsuda, Masahiro Torihara, Yoshin Tamai
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Abstract
A process for producing cyclopropanecarbonitrile involves reacting cyclopropanecarbaldoxime with acetic anhydride to obtain a mixture containing acetic acid and cyclopropanecarbonitrile. The acetic acid can be removed from the mixture through azeotropic distillation of acetic acid with a solvent that forms with acetic acid an azeotropic mixture having an azeotropic point lower than the boiling point of the cyclopropanecarbonitrile.
Claims20
A process for producing cyclopropanecarbonitrile, the process comprising reacting cis-cyclopropanecarbaldoxime with acetic anhydride.
A process for producing cyclopropanecarbonitrile, the process comprising
- reacting cyclopropanecarbaldoxime with acetic anhydride to obtain a mixture containing acetic acid and cyclopropanecarbonitrile;
- and
- removing at least a portion of the acetic acid from the mixture through azeotropic distillation of the acetic acid with a solvent that forms with the acetic acid an azeotropic mixture having an azeotropic point lower than the boiling point of the cyclopropanecarbonitrile.
Dependencies are inferred from the claim text.