Patent · US Expired

Process for the preparation of halogenated (2,2)-paracyclophanes and mixtures of resultant halogenated (2,2)-paracyclophanes

US4783561A · kind A · utility

15Cited by

3References

11Claims

0Family size

Assignee

Montedison S.p.A. · IT

Inventors

Gian Franco Pregaglia · Milano, IT
Maurizio Beretta · Milano, IT
Alessandro Malacrida · Milano, IT

Key dates

Filing date	Oct 29, 1986
Grant date	Nov 8, 1988
Priority date	—
Expiry date	Oct 29, 2006

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C17/263
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

There is disclosed a process for the preparation of halogenated (2,2)-paracyclophanes by Hofmann elimination, in an alkaline medium, from p.methylbenzyltrimethylammonium hydroxide halogen-substituted in the nucleus.

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