General description
TFFH is an in situ coupling reagents which smoothly converts protected amino acids to the corresponding acid fluoride in the presence of base [1]. Acid fluorides have proven are highly effective at coupling hindered amino acids such as α,α-disubstituted amino acids [2].
Associated Protocols and Technical Articles
Guide to Selection of Coupling Reagents
Literature references
[1] L. A. Carpino, et al. (1995) J. Am. Chem. Soc., 117, 5401.
[2] S. A. Triolo, et al. in ′Peptides 1996, Proc. of 24th European Peptide Symposium′, R. Ramage & R. Epton (Eds), Mayflower Scientific Ltd., Birmingham, 1998, pp. 839.
Analysis Note
Color (visual): white to slight yellow to beige
Appearance of substance (visual): powder
Assay 1H-qNMR: ≥ 98.0 %
Ratio Cation/anion in 19F-NMR integration: lot specific result
1:5,7 to 1:6,3
Identity (IR): passes test
Legal Information
Novabiochem is a registered trademark of Merck KGaA, Darmstadt, Germany
- UPC:
- 51442707
- Condition:
- New
- Weight:
- 1.00 Ounces
- HazmatClass:
- No
- WeightUOM:
- LB
- MPN:
- 8510900005