Method for preparing a salt of 4-hydroxystyrene and for preparin

Details Method for preparing a salt of 4-hydroxystyrene and for preparin Method for preparing a salt of 4-hydroxystyrene and for preparin

1990-11-16

1993-08-31

Dees, Jose G.

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

Organic compounds

Carbonate esters

568780, C07C 6996, C07C 3906

Patent

active

052410986

ABSTRACT:
The present invention pertains to a method of forming a salt of 4-hydroxystyrene by reacting 4-acetoxystyrene with a suitable base in a suitable solvent system. Subsequently, or simultaneously, the salt of 4-hydroxystyrene can be reacted, preferably in situ, with di-tertiary-butyl-dicarbonate to form 4-tertiary-butoxycarbonyloxystyrene.

REFERENCES:
patent: 4491628 (1985-01-01), Hiroshi et al.
patent: 5087772 (1992-02-01), Sheehan et al.
Carson et al, "Preparation of Cinylphenols and Isopropenylphenols", vol. 23, Apr. 1958, J. Org. Chem.
Fretchet et al, "Poly(p-tert-butoxycarbonyloxystyrene): A Convenient Precursor to p -Hydroxystyrene Resins", Polymer, 1983, p. 995.

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