PyBOP

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PyBOP
File:PyBOP.svg
Ball-and-stick model of the component ions of PyBOP
Names
IUPAC name
(Benzotriazol-1-yloxy)tripyrrolidinophosphonium hexafluorophosphate
Other names
PyBOP
Identifiers
3D model (JSmol)
ChemSpider
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UNII
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  • InChI=1S/C18H28N6OP.F6P/c1-2-10-18-17(9-1)19-20-24(18)25-26(21-11-3-4-12-21,22-13-5-6-14-22)23-15-7-8-16-23;1-7(2,3,4,5)6/h1-2,9-10H,3-8,11-16H2;/q+1;-1 checkY
    Key: VIAFLMPQBHAMLI-UHFFFAOYSA-N checkY
  • InChI=1/C18H28N6OP.F6P/c1-2-10-18-17(9-1)19-20-24(18)25-26(21-11-3-4-12-21,22-13-5-6-14-22)23-15-7-8-16-23;1-7(2,3,4,5)6/h1-2,9-10H,3-8,11-16H2;/q+1;-1
    Key: VIAFLMPQBHAMLI-UHFFFAOYAY
  • F[P-](F)(F)(F)(F)F.n4nn(O[P+](N1CCCC1)(N2CCCC2)N3CCCC3)c5ccccc45
Properties
C18H28F6N6OP2
Molar mass 520.401 g·mol−1
Appearance White crystals
Melting point 150 °C (302 °F; 423 K)
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Irritant
GHS labelling:[1][2][citation needed]
GHS07: Exclamation mark
Warning
H315, H319, H335
P261, P305+P351+P338
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

PyBOP (benzotriazol-1-yloxytripyrrolidinophosphonium hexafluorophosphate) is a reagent used to prepare amides from carboxylic acids and amines in the context of peptide synthesis.[3] It can be prepared from 1-hydroxybenzotriazole and a chlorophosphonium reagent under basic conditions.[4] It is a substitute for the BOP reagent that avoids the formation of the carcinogenic waste product HMPA.[5] Thermal hazard analysis by differential scanning calorimetry (DSC) shows PyBOP is potentially explosive.[6]

See also

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References

[edit | edit source]
  1. ^ Sigma-Aldrich Co., product no. {{{id}}}.
  2. ^ GHS: Sigma-Aldrich377848
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