2-Amino-4-ethynylphenol

Details 2-Amino-4-ethynylphenol 2-Amino-4-ethynylphenol

1978-07-19

1980-01-01

Doll, John

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

528210, C07C 9144

Patent

active

041816811

ABSTRACT:
2-Amino-4-ethynylphenol, a novel compound, is prepared by a four-step synthetic sequence in which the key reaction is the treatment of 4-acetoxy-3-nitroacetophenone with a Vilsmeier reagent derived from N,N-dimethylformamide and phosphorus oxychloride. The compound is useful as an endcapping agent in the synthesis of fluorocarbon ether bibenzoxazole oligomers which, because of the presence of acetylenic terminal groups, can be cured by thermal means to provide broad-use temperature, fuel and fluid resistant vulcanizates.

REFERENCES:
patent: 3700743 (1972-10-01), Relles
patent: 3928450 (1975-12-01), Bilow et al.
patent: 3981932 (1976-09-01), Diamond
Morrison et al., "Organic Chemistry", 3rd edition, pp. 673 & 677 (1975).
Fieser et al., "Reagents for Organic Synthesis", vol. 1, pp. 441 & 1081 (1967).
Schofield et al., "Chemical Abstracts", vol. 44, Ab. No. 2992g (1950).
Cook et al., "Chemical Abstracts", vol. 58, Ab. No. 12390d (1963).

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