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Tris(2,2,2-trifluoroethyl) Borate
(CAS RN:659-18-7 Product Number:T3010)


Tris(2,2,2-trifluoroethyl) Borate
Synonym Boric Acid Tris(2,2,2-trifluoroethyl) Ester

General Information

Product Number T3010

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Purity/Analysis Method >95.0%(T)
Storage Temperature
M.F. / M.W. C6H6BF9O3=307.91
CAS RN 659-18-7
Related CAS RN
MDL Number MFCD00093768
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Purity(Neutralization titration) min. 95.0 %
Specific gravity (20/20) 1.4410 to 1.4450

Data of Reference

bp 125°C(lit.)


Reaxys-RN 1714040
PubChem SID 253659909

Transport Information

HS Number 2920.90.5100


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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