Patent · US Active

One-step intermolecular electrocyclic rearrangement process

US9371262B2 · kind B2 · utility

0Cited by

0References

15Claims

0Family size

Assignee

Givaudan SA · CH

Inventors

Yue Zou · Shanghai, CN
Li Jun Zhou · Hetuan, CN
Changming Ding · Shanghai, CN
Andreas Goeke · Stintenberger Straße, CH

Key dates

Filing date	Oct 26, 2012
Grant date	Jun 21, 2016
Priority date	—
Expiry date	Dec 24, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C2602/20
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A direct acid catalyzed intermolecular electrocyclic rearrangement process for the preparation of linear and cyclic homoallylic ester and amides. A one step intermolecular electrocyclic rearrangement process includes the step of reacting a beta, gamma-unsaturated aldehyde or ketone, in which the beta, gamma-unsaturation is not part of an aromatic ring, with another aldehyde or a secondary aldimine in the presence of an acid.

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