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

1980-11-07

1982-04-13

Jiles, Henry R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D30786

Patent

active

043247318

ABSTRACT:
Process for the preparation of 2,3-dihydro-2,2-dimethyl-7-hydroxybenzofuran from ortho-methallyloxyphenol or ortho-methallylpyrocatechol.
It consists in heating ortho-methallyloxyphenol or ortho-methallylpyrocatechol in the presence of an aluminum derivative.
2,3-Dihydro-2,2-dimethyl-7-hydroxybenzofuran can be used for the synthesis of carbofuran, which is a polyvalent insecticide.

REFERENCES:
patent: 3470299 (1969-09-01), Heiss et al.
patent: 3474170 (1969-10-01), Scharpf
patent: 3474171 (1969-10-01), Scharpf
patent: 3927118 (1975-12-01), Ozretich
Toth et al., Chem. Abstracts, 5106c, p. 479, vol. 91, (1979).
Newer Methods of Preparative Organic Chemistry, vol. II, pp. 337-359, (translation in English of German "Neuere Methoden der Prap. Org. Chem.", II, pp. 231-246) by Stroh et al.

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