Racemization of optically active compounds having a chlorine sub

Details Racemization of optically active compounds having a chlorine sub Racemization of optically active compounds having a chlorine sub

1985-08-30

1986-09-23

Trousof, Natalie

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

Organic compounds

Carboxylic acids and salts thereof

562402, 562490, 562492, 562493, 562602, C07B 5500

Patent

active

046136894

ABSTRACT:
Optically active compounds having a chlorine atom attached to the chiral carbon atom such as 2-chloroaliphatic acids can be racemized without by-product formation by heating an acidified solution of the compound in the presence of chloride ion at sufficient strength, and at a pH and temperature sufficient to accomplish racemization. The preferred acidifying agent and source of chloride ion is hydrochloric acid. The use of hydrochloric acid at room temperature as well as the use of either sulfuric acid or caustic soda failed to produce racemization.

REFERENCES:
patent: 4245116 (1981-01-01), Ohno et al.

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