Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1981-01-09
1982-07-13
Rotman, Alan L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C07D21367
Patent
active
043395864
ABSTRACT:
Pyridoxine or its acid addition salt is produced by reacting 4-carboxymethyl-5-substituted oxy-oxazoles with 4,7-dihydro-1,3-dioxepines in the presence of a compound of the formula ##STR1## wherein X is oxygen, --NH--, or --NH--NH-- and, then, subjecting the resultant compound to hydrolysis. This process offers industrially more advantageous production of pyridoxine than hitherto known processes.
REFERENCES:
patent: 3669984 (1972-06-01), Schaeren
Rotman Alan L.
Takeda Chemical Industries Ltd.
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