Two phase process for preparing 2-methallyloxyphenol from catech

Details Two phase process for preparing 2-methallyloxyphenol from catech Two phase process for preparing 2-methallyloxyphenol from catech

1987-12-18

1991-01-01

Gray, Bruce

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C07C 4100

Patent

active

049820125

ABSTRACT:
2-Methallyloxyphenol is produced selectively in good yield, high purity and without having to separate and recycle large amounts of catechol, in the reaction of methallyl chloride with catechol, by forming a substantially non-aqueous mixture of an alkali metal catecholate and a molar excess of methallyl chloride perferably in a polar organic solvent in which the methallyl chloride is substantially insoluble, agitating the mixture to produce a two-phase system comprising an organic first phase containing product 2-methallyloxyphenol dissolved in methallyl chloride and a polar second phase containing unreacted catecholate, and recovering product 2-methallyloxyphenol from the first plase. The presence of a quaternary ammonium or phosphonium catalyst in the reaction mixture further reduces undesired ring-alkylated by-products.

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