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3,4-Dihydro-2h-pyran

Compound with spectra: 52 NMR, 9 FTIR, 1 Raman, 16 MS (GC), and 2 Near IR

3,4-Dihydro-2h-pyran
SpectraBase Compound ID ExgiTUgZPya
InChI InChI=1S/C5H8O/c1-2-4-6-5-3-1/h2,4H,1,3,5H2
InChIKey BUDQDWGNQVEFAC-UHFFFAOYSA-N
Mol Weight 84.12 g/mol
Molecular Formula C5H8O
Exact Mass 84.057515 g/mol

View Spectrum of 3,4-Dihydro-2h-pyran

Vapor Phase IR Spectrum
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Vapor Phase IR Spectrum
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Vapor Phase IR Spectrum
Copyright Copyright © 1980, 1981-2025 John Wiley & Sons, Inc. All Rights Reserved.

View Spectrum of 3,4-Dihydro-2h-pyran

Vapor Phase IR Spectrum
Copyright Copyright © 2021-2025 Sigma-Aldrich Co. LLC. - Database Compilation Copyright © 2021-2025 John Wiley & Sons, Inc. All Rights Reserved.
Source of Sample Sigma-Aldrich Co. LLC.
Source of Spectrum Sigma-Aldrich Co. LLC.
Catalog Number D106208

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FTIR Spectrum
Copyright Copyright © 1989, 1990-2025 Wiley-VCH GmbH. All Rights Reserved.
Technique Cell

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FTIR Spectrum
Copyright Copyright © 1980, 1981-2025 John Wiley & Sons, Inc. All Rights Reserved.
Technique NEAT

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FTIR Spectrum
Copyright Copyright © 1980, 1981-2025 John Wiley & Sons, Inc. All Rights Reserved.
Source of Sample EASTMAN ORGANIC CHEMICALS, ROCHESTER, NEW YORK
Catalog Number P5776 (PRACTICAL GRADE)
Technique CAPILLARY CELL: 0.015 MM

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FTIR Spectrum
Copyright Copyright © 2018-2025 Sigma-Aldrich Co. LLC. - Database Compilation Copyright © 2018-2025 John Wiley & Sons, Inc. All Rights Reserved.
Source of Sample Aldrich
Source of Spectrum Sigma-Aldrich Co. LLC.
Catalog Number D106208
Technique Neat

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Near IR Spectrum
Copyright Copyright © 1989, 1990-2025 Wiley-VCH GmbH. All Rights Reserved.
Source of Spectrum Prof. Buback, University of Goettingen, Germany

View Spectrum of 3,4-Dihydro-2h-pyran

Near IR Spectrum
Copyright Copyright © 1989, 1990-2025 Wiley-VCH GmbH. All Rights Reserved.
Source of Spectrum Prof. Buback, University of Goettingen, Germany

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MS (GC) Spectrum
Copyright Copyright © 2002-2025 Wiley-VCH GmbH. All Rights Reserved.
Source of Spectrum Chemical Concepts, A Wiley Division, Weinheim, Germany

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MS (GC) Spectrum
Copyright Copyright © 2002-2025 Wiley-VCH GmbH. All Rights Reserved.
Source of Spectrum Chemical Concepts, A Wiley Division, Weinheim, Germany

View Spectrum of 3,4-Dihydro-2h-pyran

MS (GC) Spectrum
Copyright Copyright © 2002-2025 Wiley-VCH GmbH. All Rights Reserved.
Source of Spectrum Chemical Concepts, A Wiley Division, Weinheim, Germany

View Spectrum of 3,4-Dihydro-2h-pyran

MS (GC) Spectrum
Copyright Database Compilation Copyright © 2023-2025 John Wiley and Sons, Inc. Copyright © 2023-2025 John Wiley and Sons, Inc., Portions Copyright Wiley-VCH GmbH, Adams Library under license from Diablo Analytical. All Rights Reserved.
Source of Spectrum Chemical Concepts, A Wiley Division, Weinheim, Germany

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MS (GC) Spectrum
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Source of Spectrum SRH-2022-9056-0

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MS (GC) Spectrum
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Source of Spectrum X-3-76-0

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MS (GC) Spectrum
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Source of Spectrum XW-61-0-0

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MS (GC) Spectrum
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Source of Spectrum AA-0-121-2

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MS (GC) Spectrum
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Source of Spectrum SRH-2022-4918-0

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MS (GC) Spectrum
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Source of Spectrum VC-1981-757-0

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MS (GC) Spectrum
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Source of Spectrum AD-0-629-0

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MS (GC) Spectrum
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Source of Spectrum TS-3-22-2

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MS (GC) Spectrum
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Source of Spectrum JZ-1992-4103-0

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MS (GC) Spectrum
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Source of Spectrum NW-1150-0-0

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MS (GC) Spectrum
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MS (GC) Spectrum
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13C NMR Spectrum
Copyright Copyright © 1980, 1981-2025 John Wiley & Sons, Inc. All Rights Reserved.
Source of Sample MCB Manufacturing Chemists, Norwood, Ohio
Solvent Chloroform-d; Reference=TMS Spectrometer= Varian CFT-20

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13C NMR Spectrum
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Solvent CDCL3

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13C NMR Spectrum
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Solvent CCl4

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CCl4

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CCl4

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CCl4

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CCl4

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CCl4

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
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Solvent CDCl3

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13C NMR Spectrum
Copyright Copyright © 2002-2025 Wiley-VCH GmbH. All Rights Reserved.
Solvent CDCl3

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13C NMR Spectrum
Copyright Copyright © 2002-2025 Wiley-VCH GmbH. All Rights Reserved.
Solvent CDCl3

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13C NMR Spectrum
Copyright Copyright © 2016-2025 W. Robien, Inst. of Org. Chem., Univ. of Vienna. All Rights Reserved.
Solvent CDCl3

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13C NMR Spectrum
Copyright Copyright © 2016-2025 W. Robien, Inst. of Org. Chem., Univ. of Vienna. All Rights Reserved.
Solvent CCl4

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13C NMR Spectrum
Copyright Copyright © 2016-2025 W. Robien, Inst. of Org. Chem., Univ. of Vienna. All Rights Reserved.
Solvent CDCl3

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13C NMR Spectrum
Copyright Copyright © 2016-2025 W. Robien, Inst. of Org. Chem., Univ. of Vienna. All Rights Reserved.
Solvent NEAT

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13C NMR Spectrum
Copyright Copyright © 2016-2025 W. Robien, Inst. of Org. Chem., Univ. of Vienna. All Rights Reserved.
Solvent CDCl3

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13C NMR Spectrum
Copyright Copyright © 2016-2025 W. Robien, Inst. of Org. Chem., Univ. of Vienna. All Rights Reserved.
Solvent CD3CN

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13C NMR Spectrum
Copyright Copyright © 2021-2025 Sigma-Aldrich Co. LLC. - Database Compilation Copyright © 2021-2025 John Wiley & Sons, Inc. All Rights Reserved.
Source of Sample Sigma-Aldrich Co. LLC.
Source of Spectrum Sigma-Aldrich Co. LLC.
Catalog Number D106208
Solvent CDCl3

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1H NMR Spectrum
Copyright Copyright © 2009-2025 John Wiley & Sons, Inc. All Rights Reserved.
Solvent CCl4

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1H NMR Spectrum
Copyright Copyright © 2009-2025 John Wiley & Sons, Inc. All Rights Reserved.
Solvent CDCl3

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1H NMR Spectrum
Copyright Copyright © 2021-2025 Sigma-Aldrich Co. LLC. - Database Compilation Copyright © 2021-2025 John Wiley & Sons, Inc. All Rights Reserved.
Source of Sample Sigma-Aldrich Co. LLC.
Source of Spectrum Sigma-Aldrich Co. LLC.
Catalog Number D106208
Solvent CDCl3

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17O NMR Spectrum
Copyright Copyright © 2016-2025 W. Robien, Inst. of Org. Chem., Univ. of Vienna. All Rights Reserved.
Solvent NEAT

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17O NMR Spectrum
Copyright Copyright © 2016-2025 W. Robien, Inst. of Org. Chem., Univ. of Vienna. All Rights Reserved.
Solvent Unknown

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17O NMR Spectrum
Copyright Copyright © 2016-2025 W. Robien, Inst. of Org. Chem., Univ. of Vienna. All Rights Reserved.
Solvent Unknown

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17O NMR Spectrum
Copyright Copyright © 2016-2025 W. Robien, Inst. of Org. Chem., Univ. of Vienna. All Rights Reserved.
Solvent NEAT

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ATR-IR Spectrum
Copyright Copyright © 1980, 1981-2025 John Wiley & Sons, Inc. All Rights Reserved.

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Raman Spectrum
Copyright Copyright © 2017-2025 Sigma-Aldrich Co. LLC. - Database Compilation Copyright © 2017-2025 John Wiley & Sons, Inc. All Rights Reserved.
Catalog Number D106208
  • Dihydropyran
  • 2H-3,4-Dihydropyran
  • 3,4-Dihydropyran
  • d2-Dihydropyran
  • 2,3-Dihydropyran
  • 2,3-dihydro-4H-pyran
  • DIHYDROPYRANE
  • 2,3-DIHYDRO-GAMMA-PYRAN
  • 4,5-DIHYDROPYRAN
  • 5,6-DIHYDROPYRAN
  • 3,4-DIHYDRO-2H-PYRAN;3,4-DIDEOXY-XYLAL
  • 2,3-DIHYDRO-4-H-PYRANE
  • 4H-PYRAN, 2,3-DIHYDRO-
  • PYRAN, 2,3-DIHYDRO-,
  • delta2-Dihydropyran
  • 2H-Pyran, 3,4-dihydro-
  • Dihydro-2H-pyran
  • 3,4-Dihdro-2H-pyrane
  • 3,4-Dihydro-1H-pyran
  • 5,6-Dihydro-4H-pyran
  • Pyran, dihydro-
  • 2H-pyran, dihydro-
  • 3,4-Dihydro-2-pyran
  • .delta.(sup2)-dihydropyran
  • EINECS 203-810-4
  • NSC 57860
  • AI3-16497
  • 3,4-Di-deoxy-xylal
6-Deutero-2,3-dihydropyran
6-Deutero-2,3-dihydropyran
2,3,4,5-TETRAHYDROOXEPINE
2,3-Dihydrofuran
1-[(E)-prop-1-enoxy]butane
Butane, 1-(1-propenyloxy)-, (Z)-
Pentane, 1-(1-butenyloxy)-, (Z)-
1-Butyloxy-1,4-pentadiene
E-1-Methoxy-4-hexene
Trans-1-ethoxy-1-butene
Pent-4-enyl formate
(E)-6-methoxy-5-hexen-1-ol
Title Journal or Book Year
Dissociative Nucleophilic Substitution of η2-Olefin Complexes via a Novel η2-Vinyl Cation Intermediate Journal of the American Chemical Society 1996
Carbon-13 NMR spectra of saturated heterocycles: XI—Tetrahydropyrans (oxanes) Organic Magnetic Resonance 1983
Allylic vs. vinylic deprotonation reactions of cyclic vinyl ethers. 7-Lithio-2,3,4,5-tetrahydrooxepin: synthesis and carbon-13 NMR spectrum The Journal of Organic Chemistry 1982
17O NMR investigation ofp,π-interactions in α,β-unsaturated and aromatic ethers Organic Magnetic Resonance 1982
Direct observation of acyl anion equivalents by carbon-13 Fourier transform nuclear magnetic resonance The Journal of Organic Chemistry 1980
17O nuclear magnetic resonance:mutual effect between two β oxygen atoms and α,β double bond effect on 17O chemical shift Tetrahedron 1980
A 13C nuclear magnetic resonance study of glycals (1,5-Anhydro-hex-1-enitols) Australian Journal of Chemistry 1977
Carbon-13 nuclear magnetic resonance spectroscopy of naturally occurring substances. XIX. Aspidosperma alkaloids Journal of the American Chemical Society 1973
Chemische Verschiebungen in der kernmagnetischen Resonanz von17O in organischen Verbindungen Helvetica Chimica Acta 1961

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Sigma-Aldrich Library of FT-IR Spectra
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Sigma Aldrich NMR Library
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Wiley Registry of Mass Spectral Data 2026
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3,6-Dihydro-2H-pyran
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