Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1982-09-30
1984-07-31
Ford, John M.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
549462, 568377, C07D30786, C07D 49603
Patent
active
044631847
ABSTRACT:
A novel process is provided for the preparation of carbofuran and certain intermediate products. 1,2-Cyclohexanedione is alkylated with a beta-methallyl compound and the resulting product subjected to a Claisen rearrangement/aromatization to provide the carbofuran phenol. Reaction of the phenol with methyl isocyanate converts the phenol to the desired carbofuran.
REFERENCES:
patent: 3320286 (1967-05-01), Franko-Filipasic
Tamura et al., Chemical and Pharmaceutical Bulletin, vol. 19(3), pp. 571-575 (1971).
Dentz Bernard
Ford John M.
Moran W. R.
Shedden J. A.
Union Carbide Corporation
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