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Boron trifluoride etherate

From Wikipedia, the free encyclopedia

Boron trifluoride etherate
Bond Line Structure of Boron Trifluoride Etherate
Boron Trifluoride Ball and Stick Model
Names
Other names
Boron Trifluoride Ethyl Ether
Boron Trifluoride Diethyl Etherate
Identifiers
3D model (JSmol)
ChEMBL
ChemSpider
ECHA InfoCard 100.003.355 Edit this at Wikidata
UNII
UN number 2604
  • InChI=1S/C4H10O.BF3/c1-3-5-4-2;2-1(3)4/h3-4H2,1-2H3;
    Key: KZMGYPLQYOPHEL-UHFFFAOYSA-N
  • B(F)(F)F.CCOCC
Properties
C4H10BF3O
Molar mass 141.93 g·mol−1
Appearance colorless liquid
Density 1.15 g cm3
Melting point −58 °C (−72 °F; 215 K)
Boiling point 126 °C (259 °F; 399 K)
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Flammable, Reacts with water, Corrosive
GHS labelling:
GHS02: Flammable
GHS05: Corrosive
GHS06: Toxic
GHS07: Exclamation mark
GHS08: Health hazard
Danger
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability 2: Must be moderately heated or exposed to relatively high ambient temperature before ignition can occur. Flash point between 38 and 93 °C (100 and 200 °F). E.g. diesel fuelInstability 2: Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water. E.g. white phosphorusSpecial hazard W: Reacts with water in an unusual or dangerous manner. E.g. sodium, sulfuric acid
3
2
2
W
Flash point 58.5 °C (137.3 °F; 331.6 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Boron trifluoride etherate, strictly boron trifluoride diethyl etherate, or boron trifluoride–ether complex, is the chemical compound with the formula BF3O(C2H5)2, often abbreviated BF3OEt2. It is a colorless liquid, although older samples can appear brown. The compound is used as a source of boron trifluoride in many chemical reactions that require a Lewis acid.[1] The compound features tetrahedral boron coordinated to a diethylether ligand.[2] Many analogues are known, including the methanol complex.

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Transcription

Reactions

Boron trifluoride etherate serves as a source of boron trifluoride according to the equilibrium:

BF3OEt2 BF3 + OEt2

The BF3 binds to even weak Lewis bases, inducing reactions of the resulting adducts with nucleophiles.[1]

References

  1. ^ a b Veronica Cornel; Carl J. Lovely (2007). "Boron Trifluoride Etherate". Encyclopedia of Reagents for Organic Synthesis. John Wiley & Sons. pp. rb249.pub2. doi:10.1002/047084289X.rb249.pub2. ISBN 978-0-471-93623-7.
  2. ^ V. V. Saraev; P. B. Kraikivskii; I. Svoboda; A. S. Kuzakov; R. F. Jordan (2008). "Synthesis, Molecular Structure, and EPR Analysis of the Three-Coordinate Ni(I) Complex [Ni(PPh3)3][BF4]". J. Phys. Chem. A. 112 (48): 12449–12455. Bibcode:2008JPCA..11212449S. doi:10.1021/jp802462x. PMID 18991433.
This page was last edited on 31 May 2024, at 04:08
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