CAS 132705-51-2: Bromo-tris-pyrrolidino-phosphonium hexafluorophosphate

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Stability Moisture Sensitive Applications Bromotripyrrolidinophosphonium Hexafluorophosphate is a peptide coupling reagent that has been used in the synthesis of rostate tumor specific peptide-peptoid hybrid prodrugs. References Li, S., et. al.: Chem. Commun., 47, 12840 (2011); Lee, J., et. al.: Bioorg. Med. Chem. Lett., 25, 2849 (2015)

Bromo[tri(pyrrolidin-1-yl)]phosphonium hexafluorophosphate

PyBroP is a phosphonium salt used in peptide coupling chemistry, analogous to PyCloP. PyBroP shows high efficiency in the coupling of N-methylated amino acids and α,α-disubstituted amino acids, with excellent yields, no epimerisation and fast reaction rates. PyBroP is a stable solid which can be used in a one-pot procedure and is soluble in the solvents commonly used for peptide coupling chemistry. PyBroP is a derivative of the phosphonium coupling reagent BOP but contains a pyrrolidine moiety in place of the dimethylamine of BOP. The aim behind the design of PyBroP was to prevent the formation of the extremely toxic and carcinogenic by-product HMPA generated with BOP, but with comparable performances.