Process for synthesis of 5-alkylbenzodioxoles
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United States of America Patent
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Jun 26, 2001
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N/A
app pub date -
Apr 13, 2000
filing date -
Apr 30, 1999
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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.
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