abstract |
(57) Abstract: A simple and economical method for producing optically active 4-halogeno-1,3-butanediol, optically active 1,2,4-butanetriol and optically active 3-hydroxy-γ-butyrolactone. SOLUTION: 4-halogeno-1,3-butanediol or an optically active substance thereof is pseudomonas (Pseudomona). The above-mentioned optically active substance is produced by the action of a microorganism belonging to s). |