2-Ethynyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

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Names

[ Name ]:
2-Ethynyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

[Synonym ]:
2-Ethynyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
Ethynylboronic Acid Pinacol Ester
1,3,2-Dioxaborolane, 2-ethynyl-4,4,5,5-tetramethyl-

Chemical & Physical Properties

[ Density]:
0.9±0.1 g/cm3

[ Boiling Point ]:
132.6±23.0 °C at 760 mmHg

[ Melting Point ]:
25 °C

[ Molecular Formula ]:
C₈H₁₃BO₂

[ Molecular Weight ]:
151.999

[ Flash Point ]:
34.0±22.6 °C

[ Exact Mass ]:
152.100861

[ PSA ]:
18.46000

[ LogP ]:
1.25100

[ Vapour Pressure ]:
10.8±0.2 mmHg at 25°C

[ Index of Refraction ]:
1.427

MSDS

Click to get detail MSDS

Safety Information

[ RIDADR ]:
UN 3272 3/PG III

[ Packaging Group ]:
III

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

Isopropoxyboronic acid pinacol ester
lithium acetylide-ethylenediamine complex

DownStream

3-Methoxycarbonylphenylboronic acid pinacol ester
Methyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate
METHYL 2-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)BENZOATE
2-Chloro-3-methylpyridine-4-boronic acid pinacol ester
2-chloro-3-methylpyridine-5-boronic acid pinacol ester
1-phenyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole
1-Phenyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole
3,6-dichloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridazine

Related Compounds

2-[2-(4-fluorophenyl)ethynyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
2-[2-(4-methoxyphenyl)ethynyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
4,4,5,5-TETRAMETHYL-2-(PHENYLETHYNYL)-1,3,2-DIOXABOROLANE
2-(cyclobutylmethyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
2-(bromomethyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
2-cyclopentyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
2-((1-(4-fluorophenyl)-4-oxo-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-6-yl)thio)-N-(5-methyl-1,3,4-thiadiazol-2-yl)acetamide
3-[5-Chloro-2-(methylsulfanyl)pyrimidin-4-yl]-3-oxo-2-(4-oxo-3,4-dihydroquinazolin-2-yl)propanenitrile
N-(4-amino-2-((2-((3-chlorophenyl)amino)-2-oxoethyl)thio)-6-oxo-1,6-dihydropyrimidin-5-yl)furan-2-carboxamide
N-(4-amino-2-((2-((3,4-dichlorophenyl)amino)-2-oxoethyl)thio)-6-oxo-1,6-dihydropyrimidin-5-yl)thiophene-2-carboxamide
(E)-2-(2-((4-methoxyphenyl)imino)-4-oxothiazolidin-5-yl)-N-phenylacetamide
5-(4-(diethylamino)phenyl)-2-(methylthio)-7,8,9,10-tetrahydropyrimido[4,5-b]quinoline-4,6(3H,5H)-dione
Ethyl 2-(benzylthio)-7-methyl-4-oxo-5-(pyridin-4-yl)-3,4,5,8-tetrahydropyrido[2,3-d]pyrimidine-6-carboxylate
N-(2-chloro-5-(trifluoromethyl)phenyl)-2-((4-oxo-1-(p-tolyl)-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-6-yl)thio)acetamide
N-(4-amino-2-((2-((4-fluorobenzyl)amino)-2-oxoethyl)thio)-6-oxo-1,6-dihydropyrimidin-5-yl)thiophene-2-carboxamide
(4,4-Difluoro-5-methylpiperidin-3-yl)methanol

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