Patent · US Active

Method for producing 2-substituted tetrahydropyranols

US8618315B2 · kind B2 · utility

9Cited by

0References

15Claims

0Family size

Assignee

BASF SE

Inventors

Gabriele Gralla · Mannheim, DE
Ralf Pelzer · Rastenberg, DE
Klaus Ebel · Lampertheim, DE
Ulrich Griesbach · Mannheim, DE
Jörg Botzem · Schifferstadt, DE

Key dates

Filing date	May 11, 2010
Grant date	Dec 31, 2013
Priority date	—
Expiry date	May 16, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D309/12
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a process for the preparation of 2-substituted 4-hydroxy-4-methyltetrahydropyranols by reacting 3-methylbut-3-en-1-ol (isoprenol) with the corresponding aldehydes in the presence of a strongly acidic cation exchanger. Specifically, the present invention relates to a corresponding process for the preparation of 2-isobutyl-4-hydroxy-4-methyltetrahydropyran by reacting isoprenol with isovaleraldehyde.

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