AI Article Synopsis
- A new method was developed to produce toluene cis glycol using a specific strain of Rhodococcus (MA 7249) lacking certain enzymes.
- The produced toluene cis glycol exhibited optical rotations that confirmed its absolute configuration as (1S,2R).
- When grown in a lab with toluene vapors, MA 7249 achieved a concentration of 18 g/l of toluene cis glycol in about 110 hours and also produced similar dihydrodiols from other compounds.
Article Abstract
An attractive method for producing cis-1,2-dihydroxy-3-methylcyclohexa-3,5-diene (toluene cis glycol) was developed employing a cis dihydrodiol dehydrogenase "deficient" strain of Rhodococcus (MA 7249). The toluene cis glycol produced was found to have optical rotations of [alpha]D25 = +25.8 (c 0.45, CH3OH) and +72.8 (c 0.42, CHCl3) which indicated an absolute configuration of (1S,2R) when compared with previously published values. When cultivated in laboratory fermentor in the presence of toluene vapors, MA 7249 reached a toluene cis glycol concentration up to 18 g/l in 110 h. Culture MA 7249 also accumulated cis (1S,2R) dihydrodiols from dihydronaphthalene, biphenyl, chlorobenzene, and styrene.
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