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Title
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Organosulfur phosphonium salt-mediated synthesis of functionalized thiopyran derivatives
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Type
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JournalPaper
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Keywords
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Methyl 4-oxotetrahydro-2H thiopyran-3-carboxylate, Wittig reaction, dialkyl acetylenedicarboxylates, phosphorus ylides, triphenylphosphine
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Abstract
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Methyl 4-oxotetrahydro-2H-thiopyran-3-carboxylate as a CH-acid undergoes amild reactionwith acetylenic esters in the presence of triphenylphosphine to produce phosphorus ylides possessing thiopyran-4-one ring moiety. The resulted phosphorus ylides when heated in toluene aforded functionalized thiopyran derivatives through intramolecular Wittig reaction.
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Researchers
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Sakineh Asghari (First Researcher), mahmood tajbakhsh (Third Researcher), Ghasem Firouzzade Pasha (Second Researcher)
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