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B21122 1,4-Bis(diphenylphosphino)butane, 98%

CAS Number

Stock No. Size Price ($) Quantity Availability
B21122-03 1g 16.20
B21122-06 5g 43.00
B21122-14 25g 179.00
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1,4-Bis(diphenylphosphino)butane, 98%


Chemical Properties

Formula Weight
Melting point
Storage & Sensitivity
Air Sensitive. Store under Nitrogen. Ambient temperatures.
Soluble in chloroform. Slightly soluble in water


1,4-Bis(diphenylphosphino)butane is used in Suzuki reaction. It plays an essential role as a ligand in palladium(0)-catalyzed acylcyanation of arylacetylenes and deprotection of allyloxycarbamates. It acts as a ligand for alkylations, isomerization reactions and in organometallic chemistry. Further, it is used in Heck reaction, Negishi coupling and Sonogashira coupling. In addition to this, it is useful in organometallic chemistry.


Incompatible with strong oxidizing agents.

Literature References

Chelating ligand.

The PdCl 2 complex catalyzes the Suzuki coupling of heteroaryl chlorides with boronic acids with reported advantages over other catalysts: Tetrahedron Lett ., 32, 2273 (1991); Tetrahedron, 48, 8117 (1992).

Component of a chiral Rh-based homogeneous hydrogenation catalyst: Org. Synth. Coll., 8, 16 (1993).

Li, J. B.; Fan, W. W.; Liu, M.; Xiao, Y. L.; Jin , Q. H.; Li, Z. F. Synthesis and structural characterization of five new copper(I) complexes with 1,10-phenanthroline and 1,4-bis(diphenylphosphino)butane(dppb). J. Mol. Struct. 2015, 1085, 235-241.

Chen, J. L.; Guo, Z. H.; Yu, H. G.; He, L. H.; Liu, S. J.; Wen, H. R.; Wang, J. Y. Luminescent dinuclear copper(I) complexes bearing 1,4-bis(diphenylphosphino)butane and functionalized 3-(2'-pyridyl)pyrazole mixed ligands. Dalton Trans. 2016, 45 (2), 696-705.

Liu, X. F.; Chen, M. Y.; Gao, H. Q. Reactions of the mu3-sulfido dicobalt-iron cluster (mu3-S)FeCo2(CO)9 with triphenylphosphine or 1,4-bis(diphenylphosphino)butane. J. Coord. Chem. 2014, 67 (1), 57-63.

GHS Hazard and Precautionary Statements

Hazard Statements: H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P362-P501c

Wash face, hands and any exposed skin thoroughly after handling Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Call a POISON CENTER or doctor/physician if you feel unwell. If skin irritation occurs: Get medical advice/attention. Take off contaminated clothing and wash before reuse. Dispose of contents/ container to an approved waste disposal plant

Other References

Harmonized Tariff Code


  • A10295

    Propargyl alcohol, 99%
  • A11419

    1,2-Bis(diphenylphosphino)ethane, 97+%
  • A12099

    2,3-Dibromo-1-propene, tech. 85%, stab. with copper
  • A12931

    1,3-Bis(diphenylphosphino)propane, 97%
  • 13641

    Cerium(III) iodide, ultra dry, 99.9% (REO)

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