1,4-Bis(diphenylphosphino)butane , 96% , 7688-25-7

Synonym(s):
1,4-Butanediylbis[diphenylphosphine];1,4-Butylenebis(diphenylphosphine);dppb;Tetramethylenebis(diphenylphosphine)

CAS NO.：7688-25-7

Empirical Formula: C28H28P2

Molecular Weight: 426.47

MDL number: MFCD00003051

EINECS: 231-698-7

PRODUCT Properties

• Melting point: 132-136 °C (lit.)
• Boiling point: 542.0±33.0 °C(Predicted)
• storage temp.: Inert atmosphere,Room Temperature
• form: Crystalline Powder
• color: White to almost white
• Water Solubility: Soluble in chloroform. Slightly soluble in water
• BRN: 706446
• InChI: 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
• InChIKey: BCJVBDBJSMFBRW-UHFFFAOYSA-N
• SMILES: P(CCCCP(C1C=CC=CC=1)C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1
• CAS DataBase Reference: 7688-25-7(CAS DataBase Reference)
• NIST Chemistry Reference: 1,4-Bis(diphenylphosphino)butane(7688-25-7)
• EPA Substance Registry System: Phosphine, 1,4-butanediylbis[diphenyl- (7688-25-7)

Description and Uses

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.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H315-H319-H335
• Precautionary statements: P261-P264-P271-P280-P302+P352-P305+P351+P338
• target organs: Respiratory system
• PPE: dust mask type N95 (US), Eyeshields, Gloves
• Hazard Codes: Xi,F
• Risk Statements: 36/38-36/37/38-11
• Safety Statements: 26-36-37/39-33-16-7/9
• WGK Germany: 3
• F: 10-23
• TSCA: TSCA listed
• HS Code: 29319090
• Storage Class: 11 - Combustible Solids
• Hazard Classifications: Eye Irrit. 2; Skin Irrit. 2; STOT SE 3