Catalytic production of pyridines from alkynes and nitriles

Details Catalytic production of pyridines from alkynes and nitriles Catalytic production of pyridines from alkynes and nitriles

1975-04-02

1977-02-01

Rotman, Alan L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2602949, C07D21308

Patent

active

040061493

ABSTRACT:
In the production of pyridines by the reaction of alkynes and nitriles in the presence of a cobalt-containing catalyst, special catalysts have been found to give high yields. The catalyst can be a cobalt-(I) complex compound of the type cyclooctenyl-cobalt(I)-cyclooctadiene, methyl heptadienyl-cobalt(I)-butadiene and cyclopentadienyl-cobalt(I)-cyclooctadiene, or it can be formed in situ by reducing a di- or tri-valent cobalt salt with zinc, cadmium, a metal of the main groups I to III of the Periodic Table or with an organometallic compound of any of the foregoing.

REFERENCES:
patent: 3679688 (1972-07-01), Fenton
Wakatsuki et al., Tetrahedron Letters, No. 36, Pergamon Press, pp. 3383-3384, (1973).

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