microbiological still for framstellning of 3 - (ocidrad alkyl) - 1.9 - dihydroxy - and - 1 - hydroxy - 9 - keto dibenzo (b, d) pyraner by anvendning of a strain of micro organism bacillus cereus

摘要

1-Hydroxy-9-keto-3-alkyl-dibenzo[b,d]pyrans or 1,9-dihydroxy-3-alkyl-dibenzo[b,d]pyrans are oxygenated on the penultimate carbon of the alkyl side chain by fermentation with a strain of the micro-organism Bacillus cereus.