CAS 7688-25-7

1,4-Bis(diphenylphosphino)butane

Description:

1,4-Bis(diphenylphosphino)butane, commonly referred to as DPPB, is a bidentate ligand widely used in coordination chemistry and catalysis. It features a butane backbone with two diphenylphosphino groups attached at the 1 and 4 positions, which enhances its ability to chelate metal ions. DPPB is characterized by its relatively high stability and ability to form stable complexes with transition metals, making it valuable in various catalytic processes, including cross-coupling reactions and asymmetric synthesis. The compound is typically a white to off-white solid and is soluble in organic solvents such as dichloromethane and toluene. Its structure allows for significant steric hindrance, which can influence the reactivity and selectivity of metal complexes. Additionally, DPPB's phosphine groups can participate in various chemical reactions, including oxidation and coordination with electrophiles. Safety precautions should be taken when handling this compound, as phosphines can be toxic and may pose health risks if inhaled or ingested.

Formula: C₂₈H₂₈P₂

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

InChI key: InChIKey=BCJVBDBJSMFBRW-UHFFFAOYSA-N

SMILES: P(CCCCP(C1=CC=CC=C1)C2=CC=CC=C2)(C3=CC=CC=C3)C4=CC=CC=C4

Synonyms:

• 1,1′-(1,4-Butanediyl)bis[1,1-diphenylphosphine]
• 1,4-Bis(diphenylphosphanyl)butane
• 1,4-Butanediylbis[diphenylphosphine]
• 1,4-Butylenebis(diphenylphosphine)
• 4-Diphenylphosphanylbutyl(Diphenyl)Phosphane
• Butan-1,4-diylbis[diphenylphosphin]
• Butane-1,4-diylbis[diphenylphosphine]
• Butano-1,4-Diilbis[Difenilfosfina]
• DPPB (catalyst precursor)
• Dppb
• Phosphine, 1,1'-(1,4-butanediyl)bis[1,1-diphenyl-
• Phosphine, 1,4-butanediylbis[diphenyl-
• Phosphine, tetramethylenebis[diphenyl-
• Tetramethylenebis(diphenylphosphine)
• [4-(Diphenylphosphanyl)butyl]diphenylphosphane
• 1,4-Bis(diphenyl phosphine) butane

1,4-Bis(diphenylphosphino)butane

CAS: 7688-25-7

Formula: C₂₈H₂₈P₂

Purity: >98.0%(GC)

Color and Shape: White to Almost white powder to crystaline

Molecular weight: 426.48

Ref: 3B-B1246

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

CAS: 7688-25-7

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

Formula: (C₆H₅)₂PCH₂CH₂CH₂CH₂P(C₆H₅)₂

Purity: 98%

Color and Shape: white xtl.

Molecular weight: 426.48

Ref: 08-15-0170

1,4-Bis(Diphenylphosphino)Butane

CAS: 7688-25-7

Formula: C₂₈H₂₈P₂

Purity: 97%

Color and Shape: Solid

Molecular weight: 426.4694

Ref: IN-DA0032MA

1,4-Bis(diphenylphosphino)butane

CAS: 7688-25-7

1,4-Bis(diphenylphosphino)butane

Formula: C₂₈H₂₈P₂

Purity: 97%

Color and Shape: white crystalline solid

Molecular weight: 426.47g/mol

Ref: 54-OR315705

1,4-Bis(diphenylphosphino)butane

CAS: 7688-25-7

Formula: (C₆H₅)₂P(CH₂)₄P(C₆H₅)₂

Molecular weight: 426.48

Ref: 7W-GK3425

1,4-Bis-(diphenylphosphino)butane

CAS: 7688-25-7

1,4-Bis-(diphenylphosphino)butane is a coordination compound that contains a bicyclic heterocycle. The compounds are made up of phosphorus and nitrogen atoms which are arranged in a tetrahedral geometry. It has photochemical properties and can be used to inhibit the growth of myeloid leukemia cells. The complexes bind to amines and form stable complexes with hydroxyl groups, so they are also able to cross mitochondrial membranes. This compound has been shown to bind to copper ions in x-ray crystal structures. 1,4-Bis-(diphenylphosphino)butane binds more strongly to ethylene diamine than it does to aryl halides such as chloroethane or phenylethane. Activation energies for the binding of 1,4-bis-(diphenylphosphino)butane with ethylene diamine have been found by measuring the free energy change for its formation from

Formula: C₂₈H₂₈P₂

Purity: Min. 95%

Color and Shape: White Powder

Molecular weight: 426.47 g/mol

Ref: 3D-FB04023

1,4-Bis(diphenylphosphino)butane

CAS: 7688-25-7

Formula: C₂₈H₂₈P₂

Purity: 97%

Color and Shape: Solid

Molecular weight: 426.48

Ref: 10-F043488

1,4-Bis(diphenylphosphino)butane

Controlled Product

CAS: 7688-25-7

Applications 1,4-Bis(diphenylphosphino)butane is a catalyst precursor used in organic synthesis such as the preparation of phenanthrothiazoles.
References Shi, X. et al.: J. Org. Chem., 82, 3886 (2017);

Formula: C₂₃H₃₄N₆O₅

Color and Shape: Neat

Molecular weight: 474.553

Ref: TR-B430373

DPPB (1,4-Bis(Diphenylphosphino)Butane) extrapure, 98%

CAS: 7688-25-7

Formula: C₂₈H₂₈P₂

Purity: min. 98%

Color and Shape: White, Crystal to Crystalline powder

Molecular weight: 426.47

Ref: SR-78985