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278394

Sigma-Aldrich

3,5-Dimethyl-1-hexyn-3-ol

98%

Synonym(s):

3,5-Dimethyl-1-hexyne-3-ol, 3,5-Dimethylhexyn-3-ol

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About This Item

Linear Formula:
(CH3)2CHCH2C(CH3)(OH)C≡CH
CAS Number:
107-54-0
Molecular Weight:
126.20
EC Number:
203-500-9
MDL number:
MFCD00008941
UNSPSC Code:
12352100
PubChem Substance ID:
24856811
NACRES:
NA.22

vapor density

4.34 (vs air)

Quality Level

200

vapor pressure

4.5 mmHg ( 20 °C)

assay

98%

form

liquid

refractive index

n20/D 1.434 (lit.)

bp

150-151 °C (lit.)

density

0.859 g/mL at 25 °C (lit.)

SMILES string

CC(C)CC(C)(O)C#C

InChI

1S/C8H14O/c1-5-8(4,9)6-7(2)3/h1,7,9H,6H2,2-4H3

InChI key

NECRQCBKTGZNMH-UHFFFAOYSA-N

General description

Bimolecular rate constant for the reaction of the hydroxyl radical (OH) with 3,5-dimethyl-1-hexyn-3-ol has been been measured using the relative rate technique. Reaction of CO2 with 3,5-dimethyl-1-hexyn-3-ol catalyzed by CuCl in different ionic liquids and solvents has been investigated.

Application

3,5-Dimethyl-1-hexyn-3-ol may be used to synthesize:
  • 3,5-Dimethyl-1-phenyl-1-hexen-3-ol via one-pot palladium-mediated hydrostannylation/Stille cross-coupling.
  • 3,5-dimethyl-1-hexyn-3-acetate via esterification with acetic anhydride in a neutral ionic liquid (1-butyl-3-methylimidazolium tetrafluoroborate).
  • 3,5-Dimethyl-3-hydroxy-1-hexen-1-yl benzoate via anti-Markovnikov addition of benzoic acid.

pictograms

FlameSkull and crossbones
GHS02,GHS06

signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Eye Irrit. 2 - Flam. Liq. 3

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

111.2 °F - closed cup

flash_point_c

44 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
MKCQ8218
MKCQ3190
MKCL0896
MKCK0603
MKCJ6417

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The hydroxyl radical reaction rate constant and products of 3, 5-dimethyl-1-hexyn-3-ol.
Wells JR.
International Journal of Chemical Kinetics, 36(10), 534-544 (2004)
A New approach for the generation and reaction of organotin hydrides: the development of reactions catalytic in tin.
Terstiege I and Maleczka R E
The Journal of Organic Chemistry, 64(2), 342-343 (1999)
Efficient Ruthenium?Catalysed Synthesis of 3?Hydroxy?1?propen?1?yl Benzoates: En Route to an Improved Isomerization of 2?Propyn?1?ols into α, β?Unsaturated Aldehydes.
Picquet M, et al.
European Journal of Organic Chemistry, 2000(13), 2361-2366 (2000)
Yanlong Gu et al.
The Journal of organic chemistry, 69(2), 391-394 (2004-01-17)
Reactions of propargylic alcohols with CO(2) in a [BMIm][PhSO(3)]/CuCl catalytic system to produce the corresponding alpha-methylene cyclic carbonates were conducted with high yields. Mild reaction conditions, enhanced rates, improved yields, and recyclable ionic liquid catalyst systems are the remarkable features
Neutral ionic liquid [BMIm] BF4 promoted highly selective esterification of tertiary alcohols by acetic anhydride.
Duan Z, et al.
J. Mol. Catal. A: Chem., 246(1-2), 70-75 (2006)

Articles

Functionalized Alkynes

Alkynes contain a highly versatile functional group that may be utilized for numerous reactions such as electrophilic additions of hydrogen, halogens, hydrogen halides, or water; metathesis; hydroboration; oxidative cleavage; C–C coupling; and cycloadditions

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