Method for the preparation of a sodium salt of 1-alkyne compound

Details Method for the preparation of a sodium salt of 1-alkyne compound Method for the preparation of a sodium salt of 1-alkyne compound

1980-11-21

1982-07-13

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07F 104

Patent

active

043393977

ABSTRACT:
The invention provides a novel and improved method for the preparation of a sodium salt of a 1-alkyne of the general formula ##STR1## in which R.sup.1 and R.sup.2 are each a hydrogen atom or a monovalent hydrocarbon group free from aliphatic unsaturation, by the reaction of a corresponding 1,2-alkadiene with metallic sodium in an inert organic solvent. According to the invention, the metallic sodium is dispersed in the inert solvent as finely as possible to have a particle diameter not exceeding 1000 .mu.m so as that the reaction velocity is very much increased even under atmospheric pressure to give an improved yield of the product.

REFERENCES:
patent: 3975453 (1976-08-01), Smith
Kirk Othmer Encyclopedia of Chem. Technology, Interscience Encyclopedia Inc., N.Y., vol. 7 (1951 Ed.).

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