261947

1,4-Bis(diphenylphosphino)butane

98%

• Synonym(s): 1,4-Butanediylbis[diphenylphosphine], 1,4-Butylenebis(diphenylphosphine), Tetramethylenebis(diphenylphosphine), dppb
• Linear Formula: (C₆H₅)₂P(CH₂)₄P(C₆H₅)₂
• CAS Number: 7688-25-7
• Molecular Weight: 426.47
• Beilstein/REAXYS Number: 706446
• EC Number: 231-698-7
• MDL number: MFCD00003051
• UNSPSC Code: 12352002
• PubChem Substance ID: 24855845
• NACRES: NA.22

Properties

• assay: 98%
• form: solid
• reaction suitability: reagent type: ligand; reaction type: Alkylations; reagent type: ligand; reaction type: Heck Reaction; reagent type: ligand; reaction type: Isomerizations; reagent type: ligand; reaction type: Negishi Coupling; reagent type: ligand; reaction type: Sonogashira Coupling; reagent type: ligand; reaction type: Stille Coupling; reagent type: ligand; reaction type: Suzuki-Miyaura Coupling
• mp: 132-136 °C (lit.)
• functional group: phosphine
• SMILES string: C(CCP(c1ccccc1)c2ccccc2)CP(c3ccccc3)c4ccccc4
• InChI: 1S/C28H28P2/c1-5-15-25(16-6-1)29(26-17-7-2-8-18-26)23-13-14-24-30(27-19-9-3-10-20-27)28-21-11-4-12-22-28/h1-12,15-22H,13-14,23-24H2
• InChI key: BCJVBDBJSMFBRW-UHFFFAOYSA-N

Description

Application

Employed as a ligand in Pd(0)-catalyzed acylcyanation of arylacetylenes and deprotection of allyloxycarbamates.

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H315,H319,H335
• pcodes: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Gloves