FIRST DIRECT AROMATIC RING-CLEAVAGE OF PHENOLS RELATED TO VANILLIN INTO MUCONIC ACID-DERIVATIVES CATALYZED BY A MICROORGANISM

Incubations of Pseudomonas cepacia AC1100 resting cells with 5-bromo-, 5-chlorovanillin and vanillin yield the muconic compounds resulting f rom direct phenol ring cleavage of the COH-COMe bond.