Process for producing 1,4-benzodioxane derivatives

Details Process for producing 1,4-benzodioxane derivatives Process for producing 1,4-benzodioxane derivatives

C - Chemistry, Metallurgy

07

D

C07D 319/20 (2006.01) C07D 317/36 (2006.01)

Patent

CA 2256681

An industrial process for producing 1,4-benzodioxane derivatives (1), characterized by converting a diol (2) into a carbonate (3) with a carbonating agent, removing the protecting group, and cyclizing the obtained compound by heating or by treating with a base or fluoride salt.

Cette invention se rapporte à un procédé industriel servant à produire des dérivés de 1,4-benzodioxane (1), ce procédé consistant à convertir un diol (2) en un carbonate (3) au moyen d'un agent de carbonatation, à éliminer le groupe protecteur, et à cycliser le composé ainsi obtenu en le chauffant ou en le traitant avec une base ou un sel fluorure.

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