Patent · US Expired

Method for producing alkyne diols

US6297407A · kind A · utility

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0References

8Claims

0Family size

Assignee

BASF SE

Inventors

Alois Kindler · Haßloch, DE
Melanie Brunner · Schifferstadt, DE
Christian Tragut · Monsheim, DE
Jochem Henkelmann · Mannheim, DE

Key dates

Filing date	Jan 24, 2001
Grant date	Oct 2, 2001
Priority date	—
Expiry date	Jan 24, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C29/42
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to a method for producing alkyne diols by reacting ketones with acetylenic hydrocarbons in an organic solvent in the presence of a base which contains potassium alcoholates of primary and/or secondary alcohols. The alkyne diols are produced while forming adducts which precipitate out of the reaction mixture and which are comprised of alkyne monoalcohols and/or alkyne diols and a base. The stoichiometries of the reaction partners are selected such that gelatinous adducts are formed which comprise a spherical surface, whereby the reaction mixture remains agitable during the entire reaction.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.