Catalytic process for the preparation of epoxides from alkenes

US7235676B2 · kind B2 · utility

Assignee

• COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH · IN

Inventors

• Noor-ul Hasan Khan · Bhavnagar, IN
• Sayed Hasan Razi Abdi · Sayla, IN
• Rukhsana Ilyas Kureshy · Bhavnagar, IN
• Surendra Singh · Shrewsbury, US
• Irshad AHMAD · Sayla, IN
• Raksh Vir Jasra · Sayla, IN
• Pushpito Kumar Ghosh · Bhavnagar, IN

Key dates

• Filing date: Apr 13, 2004
• Grant date: Jun 26, 2007
• Expiry date: Oct 23, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D301/12
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

An improved catalytic process for the preparation of epoxides from alkenes using a combination of transition metal salt, an inorganic promoter and an organic additive in absence of solvent or in the presence of a solvent with commercially available hydrogen per oxide has been disclosed. Thus, styrene oxide was prepared at a kilogram scale in 86% isolated yield with purity >95%.