Patent · US Expired

Pure annonin and a process for the preparation thereof

US4762716A · kind A · utility

1Cited by

1References

4Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Heinrich F. Moeschler · Leverkusen, DE
Wolfgang Pfluger · Leichlingen, DE
Detlef Wendisch · Bensberg, DE

Key dates

Filing date	Jun 22, 1987
Grant date	Aug 9, 1988
Priority date	—
Expiry date	Jun 22, 2007

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S424/10
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Annonin, a substantially pure insecticidally active compound obtained by extracting comminuted Annona squamosa parts to remove the petroleum ether solubles, then optionally extracting with alcohol to dissolve the desired material, then extracting either the petroleum ether-residue or the alcohol extract with an aliphatic halogenohydrocarbon, an aliphatic ether and/or an ester, and discarding the residue, and evaporating off the solvent. It has the 1R spectrum shown in the drawing.

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