Boron trifluoride diethyl etherate

• Catalog No.: A15275
• CAS Number: 109-63-7
• M. F.: C4H10BF3O
• M. W.: 141.9278096
• Purity: 98+%

SYNONYMS

• Title: 三氟化硼乙醚
• IUPAC name: ethoxyethane; trifluoroborane
• IUPAC Traditional name: boron trifluoride; diethyl ether
• Synonyms: Boron trifluoride etherate; Boron fluoride-ether

DATABASE IDS

• EC Number: 203-689-8
• MDL Number: MFCD00013194
• Beilstein Number: 3909607
• CAS Number: 109-63-7
• Merck Index: 141350

PROPERTIES

• Purity: 98+%
• Boiling Point: 125-126°C
• Density: 1.130
• Flash Point: 47°C(116°F)
• Melting Point: -60°C
• Refractive Index: 1.3440
• GHS Hazard statements: H331-H302-H372-H314-H318-H226
• European Hazard Symbols: Toxic (T)
• GHS Precautionary statements: P260-P280-P303+P361+P353-P305+P351+P338-P310
• Risk Statements: 10-22-23-35-48/23
• Safety Statements: 23-26-36/37/39-45
• Storage Warning: Moisture Sensitive
• TSCA Listed: 是
• Hazard Class: 8
• UN Number: UN2604
• Packing Group: I

REFERENCES

• Lewis acid catalyst in a wide variety of applications, for example:
• Has also been used in conjunction with BMS in the reduction of amides: J. Org. Chem., 47, 3153 (1982).
• For use in the cleavage of ethers, see Tetra-n-butylammonium iodide, A15484.
• For analogous 1,4-addition to p-benzoquinones, see 2,3-Dimethoxy-5-methyl-1,4-benzoquinone, B24777.
• Mild dehydration of tertiary alcohols to alkenes: Tetrahedron Lett., 32, 6489 (1991). In the Diels-Alder reaction: J. Am. Chem. Soc., 99, 8116 (1977). In THP protection of alcohols: Synthesis, 81, (1972).
• Reaction with Sodium borohydride, 35788, can be used for the in situ generation of diborane. For use in the hydroboration of ɑ-pinene, see: Org. Synth. Coll., 6, 943 (1988).
• Catalyst for rearrangement of epoxides to carbonyl compounds, e.g. stilbene oxide to diphenylacetaldehyde and ring-contraction of isophorone oxide: Org. Synth. Coll., 4, 375 and 957 (1963), respectively.
• Reaction with ortho esters gives high yields of crystalline dialkoxycarbenium salts, useful as powerful and selective alkylating agents, (compare Triethyloxonium tetrafluoroborate, A14420 and Trimethyloxonium tetrafluoroborate, A15175): Synth. Commun., 19, 2307 (1989).
• Catalyst for the reaction of allyltin reagents with aldehydes and ketones. Addition to the carbonyl group proceeds with allylic rearrangement: Chem. Lett., 919, 977 (1979); Acc. Chem. Res., 20, 243 (1987):