|Molar mass||86.13 g/mol|
|Melting point||−45 °C (−49 °F; 228 K)|
|Boiling point||88 °C (190 °F; 361 K)|
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
|what is: / ?)(|
Tetrahydropyran is the organic compound consisting of a saturated six-membered ring containing five carbon atoms and one oxygen atom. The compound is a colourless volatile liquid, but is obscure. Derivatives of tetrahydropyran are, however, more common. Tetrahydropyranyl (THP-) ethers derived from the reaction of alcohols and dihydropyran are common intermediates in organic synthesis. Furthermore, a tetrahydropyran ring system, i.e., five carbon atoms and an oxygen, is the core of pyranose sugars, such as glucose.
In organic synthesis, the 2-tetrahydropyranyl group is used as a protecting group for alcohols. Reaction of the alcohol with dihydropyran forms a tetrahydropyranyl ether, protecting the alcohol from a variety of reactions. The alcohol can later be restored readily by acidic hydrolysis with formation of 5-hydroxypentanal.
- D. W. Andrus; John R. Johnson (1955). "Tetrahydropyran". Org. Synth.; Coll. Vol. 3, p. 794
- R. A. Earl L. B. Townsend (1990). "Methyl 4-Hydroxy-2-butynoate". Org. Synth.; Coll. Vol. 7, p. 334
- Arthur F. Kluge (1990). "Diethyl [(2-Tetrahydropyranyloxy)methyl]phosphonate". Org. Synth.; Coll. Vol. 7, p. 160