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7688-25-7 - 1,4-Bis(diphenylphosphino)butane, 98% - Dppb - B21122 - Alfa Aesar

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

CAS Number

Size Price ($) Quantity Availability
1g 14.04
5g 39.87
25g 153.90
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1,4-Bis(diphenylphosphino)butane, 98%


Chemical Properties

Formula Weight
Melting point
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: P261-P280-P305+P351+P338-P304+P340-P362-P312-P321-P405-P403+P233-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Take off contaminated clothing and wash before reuse. Call a POISON CENTER or doctor/physician if you feel unwell. Specific treatment (see label). Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.

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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