Patent Number: 6,252,092

Title: Process for synthesis of 5-alkylbenzodioxoles

Abstract: The following description refers to a new process for the synthesis of 5-alkylated benzo[1,3]dioxole, comprising the following steps in sequence: catalytic hydrogenation of 4-acylphenol; acylation; displacement catalysed by Lewis acids; treatment with an inorganic basic compound and hydrogen peroxide; reaction with alkyl dihalides or dialkoxyalkanes. The process described herein, which yields 5-alkylbenzo[1,3]dioxoles, is economic and can be easily scaled up to industrial size.

Inventors: Borzatta; Valerio (Bologna, IT), Brancaleoni; Dario (Sasso Marconi, IT), Battistini; Christian (Classe, IT)

Assignee: Endura S.P.A.

International Classification: C07D 317/00 (20060101); C07D 317/50 (20060101); C07D 317/50 ()

Expiration Date: 06/26/2018