Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1977-01-31
1979-04-10
Lone, Werren B.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
C07C 4720
Patent
active
041488296
ABSTRACT:
A process for producing vitamin A esters, vitamin A aldehyde and vitamin A acid esters from esters of 3,7-dimethyl-9-(1-hydroxy-2,2,6-trimethylcyclohexyl)-nona-2,4,6-trien-8-yn -1-ol and 3,7-dimethyl-9-(1-hydroxy-2,2,6-trimethylcyclohexyL)-nona-2,4,6-trien-8-yn oic acid including intermediates in this process.
REFERENCES:
patent: 2676991 (1954-04-01), Guntrum et al.
patent: 2811561 (1957-10-01), Fletcher
patent: 3928400 (1975-12-01), Olson
patent: 4022807 (1977-05-01), Olson
Olson Gary L.
Saucy Gabriel
Epstein William H.
Hoffmann-La Roche Inc.
Leon Bernard S.
Lone Werren B.
Saxe Jon S.
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