Selective reduction of spinosyn factors Et-J and Et-L to spinetoram

US7683161B2 · kind B2 · utility

Assignee

• DOW AGROSCIENCES LLC · US

Inventors

• David E. Podhorez · Midland, US
• Gary Roth · Midland, US
• David C. Molzahn · Midland, US
• Timothy J. Adaway · Midland, US

Key dates

• Filing date: Nov 2, 2007
• Grant date: Mar 23, 2010
• Expiry date: Nov 17, 2027

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07H17/08
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Spinetoram is selectively produced in excellent yields by hydrogenating a mixture of 3′-O-ethyl spinosyn J and 3′-O-ethyl spinosyn L in a water miscible organic solvent using hydrogen gas and a heterogeneous catalyst.