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CAS RN: 659-18-7 | Product Number: T3010

Tris(2,2,2-trifluoroethyl) Borate

Purity: >95.0%(T)
  • Boric Acid Tris(2,2,2-trifluoroethyl) Ester
1   38  

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Product Number T3010
Purity / Analysis Method >95.0%(T)
Molecular Formula / Molecular Weight C__6H__6BF__9O__3 = 307.91 
Physical State (20 deg.C) Liquid
Store Under Inert Gas Store under inert gas
Condition to Avoid Moisture Sensitive
CAS RN 659-18-7
Reaxys Registry Number 1714040
PubChem Substance ID 253659909
MDL Number


Appearance Colorless to Almost colorless clear liquid
Purity(Neutralization titration) min. 95.0 %
Properties (reference)
Boiling Point 125 °C
Specific Gravity (20/20) 1.44
Refractive Index 1.30
Related Laws:
Transport Information:
HS Number 2920907090
Direct Amidation of Unprotected Amino Acids


Experimental procedure:
A solution of tris(2,2,2-trifluoroethyl) borate (3.0 mmol, 3.0 eq.) in CPME (1 mL) is added dropwise to a mixture of an unprotected amino acid (1.0 mmol, 1.0 eq.) and propylamine (3.0 mmol, 3.0 eq.) in CPME (1 mL) over 1 h at 80 °C or 125 °C. The resulting mixture is stirred for 5 - 15 h. Upon completion, the mixture is diluted with EtOAc or CH2Cl2 (3 mL) and water (0.5 mL). Amberlite IRA-743 and Amberlyst A-26(OH) are added and stirred for 30 min. The mixture is dried over MgSO4 and then filtered. The solids are washed with EtOAc (3 × 20 mL) and the product concentrated in vacuo. The volatile propylamine is removed in vacuo by the addition of CHCl3 to get the clean product.


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