Process for the preparation of 2,3-dihydro-2,2-dimethyl-7-hydrox

Details Process for the preparation of 2,3-dihydro-2,2-dimethyl-7-hydrox Process for the preparation of 2,3-dihydro-2,2-dimethyl-7-hydrox

1979-11-19

1981-03-17

Jiles, Henry R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07B30786

Patent

active

042566479

ABSTRACT:
Process for the preparation of 2,3-dihydro-2,2-dimethyl-7-hydroxybenzofurane, a carbofuran intermediate, from methallylpyrocatechol comprises heating the methallylpyrocatechol in the presence of water and optionally also in the presence of an inert organic solvent having a boiling point above 70.degree. C., the volume ratio of solvent to water being less than 3, the weight ratio of water to ortho-methallylpyrocatechol being between 0.3 and 5, and at a temperature of preferably 170.degree.-230.degree. C.

REFERENCES:
patent: 3455961 (1969-07-01), Weber, Jr.
patent: 3474171 (1969-10-01), Scharpf
patent: 3547955 (1970-12-01), Scharpf

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