Methyl Polyporus

Scheme 23.22 Some nitrogen-containing flavour compounds produced by microorganisms, a Methylanthranilate formation from N-methyl methylanthranilate 1 Trametes sp., Polyporus sp. b Different pyrazines produced with microorganisms in optimised media 2 mutant strain from Pseudomonas perolens ATCC 10757 3 Bacillus subtilis, Brevibacterium linens 4 mutant strain of Corynebacterium glutamicum...

The fucoxylomannan (41) of Polyporus pinicola was reinvestigated by methylation of the polysaccharide and of derived, partially hydrolyzed material.172... 

Codeine cannot be demethylated to morphine chemically.]- If it is heated with hydriodic acid no methyl iodide is evolved [169, 209-11], but the latter is evolved copiously when codeine is heated with hydriodic acid and red phosphorus [169, 211-212], the other products being intractable, varnish-like substances obtainable in the same way from morphine [213] and supposed to consist of polymers of morphine and codeine. These so-called polymers were also obtained during the action of hydrochloric and hydrobromic acids on the bases, and were the subject of an inconclusive series of investigations by Wright [169, 170, 213-14 inc.]. There is no real evidence for the existence of the polymers. Biological demethylation of codeine by various enzymes and by the glycerol extract of the mould Polyporus hispidus in nine to twelve days at 25-37° C. has been reported [225]. 

Extended quinones. A soln. of laccase from Polyporus versicolor added to a soln. of 2-methyl-1-naphthol in 0.01 M acetate buffer of pH 5.4, and kept 4 days at 30° 3,3 -dimethyl-1,1 -binaphthyl-4,4 -quinone. Y 63%. Also with K-ferricyanide, and formation of dinaphthones s. B. R. Brown and A. H. Todd, Soc. 1963, 5564 with K-ferricyanide and lead dioxide s. F. R. Hewgill and B. S. Middleton, Soc. 1965, 2914. 

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