Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1993-09-29
1995-02-07
Dentz, Bernard
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
549462, C07D30786
Patent
active
053877020
ABSTRACT:
A process for the preparation of carbofuran which is used as an insecticide. Carbofuran is the N-methylcarbamate of 7-benzofuranol. Carbofuran is prepared by reacting catechol with beta methallyl halide or the alcohol in the presence of a catalyst composite containing a heteropoly acid and reacting the 7-hydroxy 2, 3, dihydro-2, 2, dimethyl benzofuranol thus obtained with methyl isocyanate or with phosgene and methylamine to obtain carbofuran.
Baran Mitra R.
Changaramponnath Gopinathan
Paul Ratnasamy
Sarada Gopinathan
Bednarek Michael D.
Council of Scientific and Industrial Research
Dentz Bernard
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