Process for preparation of 2-vinylpyridine from acetylene and ac

Details Process for preparation of 2-vinylpyridine from acetylene and ac Process for preparation of 2-vinylpyridine from acetylene and ac

1980-06-02

1981-05-12

Randolph, John D.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546344, 260439CY, 260439R, C07C 1315, C07C 13263, C07D21322

Patent

active

042673291

ABSTRACT:
A process is described for the catalytic, selective preparation of 2-vinylpyridine from acetylene and acrylonitrile using a cyclopentadienylcobalt catalyst or .pi.-allylcobalt catalyst at elevated temperature in an inert solvent, wherein the acrylonitrile concentration is up to 2 mols/liter and the reaction is carried out at a temperature over 140.degree. C. and up to 180.degree. C., the reaction time being not more than 50 minutes.

REFERENCES:
patent: 4006149 (1977-02-01), Bonnemann et al.
Otsuka et al., J. Chem. Soc. Dalton 1972, pp. 1879 to 1882.
Greco et al., J. Chem. Soc. (A), 1971, pp. 285-288.
Watatsuki et al., Chem. Abst., vol. 82, abst. 170,714w (1975).
Curtis, Chem. Abst., vol. 76, abst. 127,065z, (1972).
Curtis, Inorganic Chemistry, vol. 11, pp. 802-807 (1972).
Boennenmann et al., Chem. Abst., vol. 84, abst. 30909e (1976).
Chemical Abstracts, Eighth Collective Index, (vols. 66-75, 1967-1971), subjects C-Cobalt, p. 7740 S (received PTO 1973).
Yamamoto et al., Chem. Abst., vol. 86, abst. 88837n (1977).
Hillard et al., J. Am. Chem. Soc., vol. 99, pp. 5058-5069, (1977).

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