3,5-disubstituted-4-acetoxystyrene and process for its productio

Details 3,5-disubstituted-4-acetoxystyrene and process for its productio 3,5-disubstituted-4-acetoxystyrene and process for its productio

1989-06-02

1990-05-22

Reamer, James H.

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

Organic compounds

Carboxylic acid esters

560142, 560144, 560139, 568656, 568774, 568776, 568634, C07C 6914

Patent

active

049279564

ABSTRACT:
3-substituted-4-hydroxy- and 4-acetoxystyrene compounds, especially 3,5-di(methyl, bromo or chloro)-4-acetoxystyrene as well as a process for its preparation. 2,6-dimethylphenol is acylated with acetic anhydride and HF catalyzed to produce 3,5-dimethyl-4-hydroxy-acetophenone. After subsequent esterification with acetic anhydride and catalyzed hydrogenation to form 1-(3',5'-dimethyl-4'-acetoxyphenyl)ethanol, this intermediate is then dehydrated with an acid and a polymerization inhibitor to produce 3,5-dimethyl-4-acetoxystyrene.

REFERENCES:
patent: 2276138 (1942-03-01), Alderman et al.
patent: 2687422 (1954-08-01), Overberger
patent: 3624134 (1985-03-01), Kablaoui
patent: 3848010 (1974-10-01), Intille
patent: 3869292 (1975-03-01), Peters
patent: 3963495 (1976-06-01), Kato et al.
patent: 3963662 (1976-06-01), Fujiwara et al.
patent: 3964908 (1976-06-01), Bargon et al.
patent: 3970534 (1976-07-01), Fujiwara et al.
patent: 4100140 (1978-07-01), Zahir
patent: 4144063 (1979-03-01), Haas
patent: 4221700 (1980-09-01), Minagawa et al.
patent: 4298720 (1981-11-01), Yamazaki et al.
patent: 4388451 (1983-06-01), Culbertson et al.
patent: 4404272 (1983-09-01), Stahlhofen
patent: 4439516 (1984-03-01), Cernigliaro et al.
patent: 4451676 (1984-05-01), Everly
patent: 4544704 (1985-10-01), Hefner, Jr.
patent: 4550069 (1985-10-01), Pampalone
patent: 4551409 (1985-11-01), Gulla et al.
patent: 4564575 (1986-01-01), Perreault et al.
patent: 4565846 (1986-01-01), Saito et al.
patent: 4600683 (1986-07-01), Greco
patent: 4663268 (1987-05-01), Turner
patent: 4678737 (1987-07-01), Schneller et al.
patent: 4720445 (1988-01-01), Brahim et al.
patent: 4764450 (1988-08-01), Ruckert et al.
Jones, J. A. and Ottenbrite, R. M.; Journal of Polymer Chemistry, vol. 24, pp. 1487-1595 (1986)-"Preparation and Structural Characterization of Poly(4-vinylphenylacetate-co-maleic anhydride".
Corson, B. B. et al.; Apr. 1958; Preparation of Vinylphenols and Isopropenylphenols.
Arshady, R. and Kenner, G. W., Journal of Polymer Science, vol. 12, pp. 2017-2025 (1974); "Phenolic Resins for Solid-Phase Synthesis: Copolymerization of Styrene and p-acetoxystyrene".
Isaks, Martin and Yates, Keith, Journal of the American Chemical Society, 1984, 106, pp. 2728-2730, "Photohydration via Intramolecular Proton Transfer to Carbon in Electronically Excited States".
Hewgill, Richmond F. and Smith, Warren T.; Journal of Polymer Science, vol. 14, 1976, pp. 463-465; "An Alternative Route to Stable Aryloxy Polyradicals".

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