Substituted amino acid process

Details Substituted amino acid process Substituted amino acid process

1984-02-17

1985-05-14

Torrence, Dolph H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260465D, 549439, 562426, 562433, 562452, 562453, 562456, C07C12178, C07C101447

Patent

active

045171300

ABSTRACT:
An improved process for preparing substituted amino acids and lower alkyl esters thereof, and intermediates therefor, comprising reacting a substituted aniline, HCN and an aldehyde to form a nitrile, converting the nitrile to an imidate salt with a strong acid and an alcohol, hydrolyzing in situ the imidate salt to the ester with addition of water, and optionally converting the ester to the salt or free acid. The acids are useful intermediates in the synthesis of pesticides.

REFERENCES:
patent: 4226802 (1980-10-01), Anderson et al.
patent: 4243819 (1981-01-01), Henrick et al.

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