Process for producing optically active 3-halogenocarboxylic...

Details Process for producing optically active 3-halogenocarboxylic... Process for producing optically active 3-halogenocarboxylic...

2005-06-07

2005-06-07

Wu, Shean C. (Department: 1756)

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

Organic compounds

Carboxylic acids and salts thereof

C252S299010, C552S012000, C560S155000, C560S179000, C560S226000

Reexamination Certificate

active

06903233

ABSTRACT:
A process for producing an optically active 3-azide-carboxylic acid ester by reacting an optically active 3-hydroxycarboxylic acid ester and a thionyl halide in the presence of a basic substance in an organic solvent to produce an optically active 3-halogenocarboxylic acid ester which is then reacted with an azide salt represented by the formula: MN3(wherein M is an alkaline metal) in water or a mixture of water and a water soluble organic solvent.

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