Home Chemistry Heterocyclic Building Blocks Pyrans 3,6-Dihydro-2H-Pyran
Hydrogenation: 3,6-dihydro-2H-pyran can be hydrogenated to form tetrahydropyran (THP). This reaction typically requires a hydrogenation catalyst like palladium on carbon (Pd/C) and hydrogen gas H2.
Epoxidation: 3,6-dihydro-2H-pyran can be epoxidized to form an epoxide. This reaction can be achieved using various reagents, such as peracids like meta-chloroperoxybenzoic acid (mCPBA).
Acid-Catalyzed Reactions: 3,6-dihydro-2H-pyran is susceptible to acid-catalyzed reactions. For instance, it can undergo ring-opening reactions in the presence of strong acids to form open-chain compounds.
Nucleophilic Substitution: The ring can be opened through nucleophilic substitution reactions. This is often done with strong nucleophiles, leading to the displacement of the oxygen atom in the ring.
Protecting Group: 3,6-dihydro-2H-pyran can be used as a protecting group for alcohols. By forming an acetal or ketal with the alcohol, it can protect the functional group during a variety of chemical transformations.
Esterification: The alcohol groups in 3,6-dihydro-2H-pyran can be esterified with various acids in the presence of an acid catalyst to form esters.
Acylation: The ring can be acylated with acyl chlorides or anhydrides to introduce acyl groups onto the ring.
Grignard Reactions: Grignard reagents can react with 3,6-dihydro-2H-pyran to introduce a variety of functional groups.
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(3,6-Dihydro-2H-pyran-4-yl)boronic acid
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Potassium (3,6-dihydro-2H-pyran-4-yl)trifluoroborate
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3,6-Dihydro-2H-pyran-4-yl trifluoromethanesulfonate
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Methyl 3,6-dihydro-2H-pyran-4-carboxylate
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