2-Octyne: Difference between revisions
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{{Expand German|2-Octin|date=August 2016}} |
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'''2-Octyne''' is a type of alkynes with a triple bond at its second carbon (the '-2' indicates the location of the triple bond in the chain). Its formula is C<sub>8</sub>H<sub>16</sub>. Its density at 25 °C and otherwise stable conditions is 0.759 g/mL. The average molar mass is 112.21 g/mol. |
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| ImageFile = Oct-2-yne 200.svg |
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| ImageSize = 200px |
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<!-- Names --> |
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| PIN = Oct-2-yne |
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| OtherNames = Amylmethylacetylene; Methylpentylacetylene |
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| Section1 = {{Chembox Identifiers |
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| CASNo = 2809-67-8 |
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| CASNo_Ref = {{cascite|correct|CAS}} |
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| UNII_Ref = {{fdacite|correct|FDA}} |
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| UNII = YP28K987X2 |
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| EINECS = 220-553-3 |
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| ChemSpiderID = 16791 |
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| PubChem = 17769 |
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| SMILES = CC#CCCCCC |
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| InChI = 1/C8H14/c1-3-5-7-8-6-4-2/h3,5,7-8H2,1-2H3 |
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| InChIKey = QCQALVMFTWRCFI-UHFFFAOYAD |
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| StdInChI = 1S/C8H14/c1-3-5-7-8-6-4-2/h3,5,7-8H2,1-2H3 |
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| StdInChIKey = QCQALVMFTWRCFI-UHFFFAOYSA-N |
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| Section2 = {{Chembox Properties |
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| C=8|H=14 |
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| Appearance = |
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| Density = 0.759 g/mL |
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| BoilingPtC = 137 |
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| Section3 = {{Chembox Hazards |
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'''2-Octyne''', also known as methylpentylethyne and oct-2-yne,<ref name=pubchem>{{cite web|title=2-OCTYNE {{!}} C8H14 - PubChem|url=https://pubchem.ncbi.nlm.nih.gov/compound/2-octyne|website=pubchem.ncbi.nlm.nih.gov|accessdate=16 August 2016}}</ref> is a type of [[alkyne]] with a [[triple bond]] at its second [[carbon]] (the '2-' indicates the location of the triple bond in the chain). Its formula is C<sub>8</sub>H<sub>14</sub>.<ref name=nist>{{cite web|title=webbook.nist.gov/cgi/cbook.cgi| date=1979 | volume=101 | pages=671–676 |url=http://webbook.nist.gov/cgi/cbook.cgi?ID=C2809678&Mask=8|accessdate=16 August 2016 | last1=Rogers | first1=D. W. | last2=Dagdagan | first2=O. A. | last3=Allinger | first3=N. L. }}</ref> Its density at 25 °C and otherwise stable conditions is 0.759 g/ml.<ref name = "Sigma">{{Sigma-Aldrich|id=484644|name=2-Octyne|accessdate=16 August 2016}}</ref> The [[boiling point]] is 137 °C.<ref name = "Sigma"/> The average [[molar mass]] is 110.20 g/mol.<ref name=nist /> |
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It is formed by isomerization of [[1-octyne]] catalyzed by a Yb<sup>II</sup> complex.<ref>Makioka, Yoshikazu; Taniguchi, Yuki; Kitamura, Tsugio; Fujiwara, Yuzo; Saiki, Akira; Takaki, Ken. Isomerization of terminal alkynes catalyzed by ytterbium(II)-aromatic imine complexes. ''Bulletin de la Société Chimique de France'', 1997. Volume 134. (3&4) pp 349-355.</ref> |
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==References== |
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{{reflist}} |
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{{Alkynes}} |
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{{DEFAULTSORT:Octyne, 2-}} |
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Latest revision as of 21:11, 5 April 2024
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| Names | |
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| Preferred IUPAC name
Oct-2-yne | |
| Other names
Amylmethylacetylene; Methylpentylacetylene
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.018.685 |
| EC Number |
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PubChem CID
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| UNII | |
CompTox Dashboard (EPA)
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| Properties | |
| C8H14 | |
| Molar mass | 110.200 g·mol−1 |
| Density | 0.759 g/mL |
| Boiling point | 137 °C (279 °F; 410 K) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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2-Octyne, also known as methylpentylethyne and oct-2-yne,[1] is a type of alkyne with a triple bond at its second carbon (the '2-' indicates the location of the triple bond in the chain). Its formula is C8H14.[2] Its density at 25 °C and otherwise stable conditions is 0.759 g/ml.[3] The boiling point is 137 °C.[3] The average molar mass is 110.20 g/mol.[2]
It is formed by isomerization of 1-octyne catalyzed by a YbII complex.[4]
References
[edit]- ^ "2-OCTYNE | C8H14 - PubChem". pubchem.ncbi.nlm.nih.gov. Retrieved 16 August 2016.
- ^ a b Rogers, D. W.; Dagdagan, O. A.; Allinger, N. L. (1979). "webbook.nist.gov/cgi/cbook.cgi". pp. 671–676. Retrieved 16 August 2016.
- ^ a b Sigma-Aldrich Co., 2-Octyne. Retrieved on 16 August 2016.
- ^ Makioka, Yoshikazu; Taniguchi, Yuki; Kitamura, Tsugio; Fujiwara, Yuzo; Saiki, Akira; Takaki, Ken. Isomerization of terminal alkynes catalyzed by ytterbium(II)-aromatic imine complexes. Bulletin de la Société Chimique de France, 1997. Volume 134. (3&4) pp 349-355.