Dialin

Dialin
Names
	Preferred IUPAC name 1,2-Dihydronaphthalene
	Other names Bicyclo[4.4.0]deca-1,3,5,7-tetraene; Δ1-Dialin; 1,2-Dialin[ citation needed ]
Identifiers
CAS Number	447-53-0 ;
3D model (JSmol)	Interactive image ;
ChEBI	CHEBI:38142 ;
ChemSpider	9550 ;
ECHA InfoCard	100.006.532
PubChem CID	9938 ;
UNII	C765E5F653 ;
CompTox Dashboard (EPA)	DTXSID30858713 ;
	InChI InChI=1S/C10H10/c1-2-6-10-8-4-3-7-9(10)5-1/h1-3,5-7H,4,8H2 Key: KEIFWROAQVVDBN-UHFFFAOYSA-N ;
	SMILES c2ccc1c(C=CCC1)c2;
Properties
Chemical formula	C10H10
Molar mass	130.190 g·mol−1
Density	0.993 g/cm3
Melting point	−8.5 °C (16.7 °F; 264.6 K)
Magnetic susceptibility (χ)	−85.1·10−6 cm3/mol
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Last updated October 27, 2025

Dialin (1,2-dihydronaphthalene) is a hydrocarbon with the chemical formula C₁₀H₁₀. The compound is chiral. It is related to naphthalene by the addition of two H atoms. It is a colorless oil. The compound can be prepared by dehydration of tetrahydronaphthol.^[1]

Cryogenic irradiation interconverts dialin with [10]‑annulene.^[2]^[3]

Related compounds

Naphthalene
Tetralin
Decalin
1,4-Dihydronaphthalene (registry number 612-17-9), an isomer of 1,2-Dihydronaphthalene

Bibliography

↑ Korstanje, Ties J.; Jastrzebski, Johann T. B. H.; Klein Gebbink, Robertus J. M. (2010). "Catalytic Dehydration of Benzylic Alcohols to Styrenes by Rhenium Complexes". ChemSusChem. 3 (6): 695–697. Bibcode:2010ChSCh...3..695K. doi:10.1002/cssc.201000055. PMID 20468027.
↑ Masamune S.; Seidner, R. T. (1969). "[10]Annulenes". Journal of the Chemical Society D: Chemical Communications (10): 542. doi:10.1039/c29690000542. ISSN 0577-6171.
↑ Kemp-Jones, A. V.; Masamune S. (1973). "The monocyclic 10π-electron system". In Nozoe Tetsuo; Breslow, Ronald; Hafner, Klaus; Itô Shô; Murata Ichiro (eds.). Topics in Nonbenzenoid Aromatic Chemistry . Vol. I. Tokyo/New York: Hirokawa Publishing, on behalf of Halsted Press, a division of John Wiley & Sons. p. 122. ISBN 0-470-65155-5 – via the Internet Archive.

This article about a hydrocarbon is a stub. You can help Wikipedia by expanding it.

This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.

[1] Korstanje, Ties J.; Jastrzebski, Johann T. B. H.; Klein Gebbink, Robertus J. M. (2010). "Catalytic Dehydration of Benzylic Alcohols to Styrenes by Rhenium Complexes". ChemSusChem. 3 (6): 695–697. Bibcode:2010ChSCh...3..695K. doi:10.1002/cssc.201000055. PMID 20468027.

[2] Masamune S.; Seidner, R. T. (1969). "[10]Annulenes". Journal of the Chemical Society D: Chemical Communications (10): 542. doi:10.1039/c29690000542. ISSN 0577-6171.

[KMSurvey-3] Kemp-Jones, A. V.; Masamune S. (1973). "The monocyclic 10π-electron system". In Nozoe Tetsuo; Breslow, Ronald; Hafner, Klaus; Itô Shô; Murata Ichiro (eds.). Topics in Nonbenzenoid Aromatic Chemistry . Vol. I. Tokyo/New York: Hirokawa Publishing, on behalf of Halsted Press, a division of John Wiley & Sons. p. 122. ISBN 0-470-65155-5 – via the Internet Archive.

[1]

[2]

[3]

Names

Preferred IUPAC name 1,2-Dihydronaphthalene
Other names Bicyclo[4.4.0]deca-1,3,5,7-tetraene; Δ1-Dialin; 1,2-Dialin^{[ citation needed ]}
Identifiers
CAS Number	447-53-0
3D model (JSmol)	Interactive image
ChEBI	CHEBI:38142 ^Y
ChemSpider	9550 ^Y
ECHA InfoCard	100.006.532
PubChem CID	9938
UNII	C765E5F653 ^Y
CompTox Dashboard (EPA)	DTXSID30858713
InChI InChI=1S/C10H10/c1-2-6-10-8-4-3-7-9(10)5-1/h1-3,5-7H,4,8H2^Y Key: KEIFWROAQVVDBN-UHFFFAOYSA-N^Y
SMILES c2ccc1c(C=CCC1)c2
Properties
Chemical formula	C₁₀H₁₀
Molar mass	130.190 g·mol⁻¹
Density	0.993 g/cm³
Melting point	−8.5 °C (16.7 °F; 264.6 K)
Magnetic susceptibility (χ)	−85.1·10⁻⁶ cm³/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is ^YN ?) Infobox references