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

Modify Date: 2025-08-25 13:44:44

2-Ethynyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane Structure
2-Ethynyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane structure
Common Name 2-Ethynyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
CAS Number 347389-74-6 Molecular Weight 151.999
Density 0.9±0.1 g/cm3 Boiling Point 132.6±23.0 °C at 760 mmHg
Molecular Formula C8H13BO2 Melting Point 25 °C
MSDS N/A Flash Point 34.0±22.6 °C

 Names

Name 2-Ethynyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
Synonym More Synonyms

 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

 Safety Information

RIDADR UN 3272 3/PG III
Packaging Group III

 Synthetic Route

~%

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

2-Ethynyl-4,4,5...

CAS#:347389-74-6

Literature: Kim, Mansuk; Lee, Daesung Organic Letters, 2005 , vol. 7, # 9 p. 1865 - 1868

 Synonyms

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-
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