N-substituted 3,4-alkylenedioxypyrroles, ester substituted dihydroxypyrroles and methods for synthesis of these pyrroles

US7799932B2 · kind B2 · utility

Assignee

• University of Florida Research Foundation, INC. · US

Inventors

• John R. Reynolds · Deltona, US
• Ryan M. Walczak · Gainesville, US
• John Sigure Cowart, II · Gainesville, US

Key dates

• Filing date: Oct 6, 2006
• Grant date: Sep 21, 2010
• Expiry date: Oct 6, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D491/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A family of N-substituted 3,4-alkylenedioxypyrrole includes monomers for of formula (I) electropolymerization to conjugated polymers and key intermediates for the preparation of the monomers. The preparation of the //-substituted 3,4-alkylenedioxypyrroles is carried out via a synthetic intermediate, an ester substituted dihydroxypyrrole. The synthetic method to prepare the //-substituted 3,4-alkylenedioxypyrrole intermediates and ultimately the N-substituted 3,4-alkylenedioxypyrrole monomers begins with a reaction to form the ester substituted dihydroxypyrrole.