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Convenient synthesis of 5-substituted-6-methoxy or 6-hydroxy-2,3-dihydro-1,4-benzodioxins via lithiated intermediates

Thierry Besson 1 Mohamed Hretani Gérard Coudert Gerald Guillaumet 2
1 COBRA - Chimie Organique et Bioorganique : Réactivité et Analyse
2 ICOA - Institut de Chimie Organique et Analytique
Abstract : The 6-methoxy and 6-tetrahydropyranyloxy-2,3-dihydro-1,4-benzodioxins can be lithiated at the 5-position to give intermediate lithio derivatives which react with various electrophiles to afford, after hydrolysis, 5-substituted-6-methoxy and 6-hydroxy-2,3-dihydro-1,4-benzodioxins.
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https://hal-normandie-univ.archives-ouvertes.fr/hal-02889858
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Submitted on : Sunday, July 5, 2020 - 5:48:50 PM
Last modification on : Monday, July 6, 2020 - 8:55:21 AM

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Thierry Besson, Mohamed Hretani, Gérard Coudert, Gerald Guillaumet. Convenient synthesis of 5-substituted-6-methoxy or 6-hydroxy-2,3-dihydro-1,4-benzodioxins via lithiated intermediates. Tetrahedron, Elsevier, 1993, 49 (7), pp.1421-1430. ⟨10.1016/S0040-4020(01)90194-2⟩. ⟨hal-02889858⟩

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