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1,4-Bis(diphenylphosphino)butane
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Name

1,4-Bis(diphenylphosphino)butane

 EINECS 231-698-7
CAS No. 7688-25-7 Density N/A
PSA 27.18000 LogP 6.03240
Solubility Soluble in chloroform. Slightly soluble in water Melting Point 132-136 °C(lit.)
Formula C28H28P2 Boiling Point 542 °C at 760 mmHg
Molecular Weight 426.478 Flash Point 299.5 °C
Transport Information N/A Appearance white to light yellow crystal powder
Safety 26-36-37/39-33-16-7/9 Risk Codes 36/38-36/37/38-11
Molecular Structure Molecular Structure of 7688-25-7 (1,4-Bis(diphenylphosphino)butane) Hazard Symbols IrritantXi,FlammableF
Synonyms

Butane-1,4-diylbis[diphenylphosphine]

Article Data 33

1,4-Bis(diphenylphosphino)butane Synthetic route

4151-27-3

1,4-bis(diphenylphosphinyl)butane

7688-25-7

1,4-di(diphenylphosphino)-butane

Conditions
ConditionsYield
With 1,1,3,3-Tetramethyldisiloxane; titanium(IV) isopropylate In various solvent(s) at 100℃; for 7h;95%

1,4-bis(diphenylphosphinyl)butan-1-one

7688-25-7

1,4-di(diphenylphosphino)-butane

Conditions
ConditionsYield
With tetramethyldisilazane; isopropyl titanoate(IV) In methyl cyclohexane at 60℃;94%
110-52-1

1,4-dibromo-butane

829-85-6

diphenylphosphane

7688-25-7

1,4-di(diphenylphosphino)-butane

Conditions
ConditionsYield
With cesium hydroxide; 4 Angstroem MS In N,N-dimethyl-formamide at 23℃; for 47h;87%
With cesium hydroxide; 4 A molecular sieve In N,N-dimethyl-formamide at 23℃; for 47h;87%
110-52-1

1,4-dibromo-butane

1079-66-9

chloro-diphenylphosphine

A

1101-41-3

Tetraphenyldiphosphin

B

7688-25-7

1,4-di(diphenylphosphino)-butane

Conditions
ConditionsYield
With tetrabutylammonium tetrafluoroborate; tetra-(n-butyl)ammonium iodide In various solvent(s) Ambient temperature; elektrochemical reaction, anode Mg bar, cathode stainless steel; var. solv.; Yields of byproduct given;A n/a
B 85%
15475-27-1, 4346-39-8

potassium diphenylphosphine

208103-10-0

(S)-2-(dibenzylamino)-3-phenyl-1-bromopropane

A

7688-25-7

1,4-di(diphenylphosphino)-butane

B

208103-11-1

Dibenzyl-((S)-1-benzyl-2-diphenylphosphanyl-ethyl)-amine

Conditions
ConditionsYield
In tetrahydrofuran at -78 - -40℃;A 30%
B 64%
110-56-5

1,4-dichlorobutane

4376-01-6

sodium diphenylphosphide

A

79369-66-7

(4-chlorobutyl)diphenylphosphane

B

7688-25-7

1,4-di(diphenylphosphino)-butane

Conditions
ConditionsYield
In tetrahydrofuran; toluene 1) -50 deg C, 2) 50 deg C;A 53%
B n/a
113237-54-0

tetrachlorure d'octaphenyl-1,1,4,4,9,9,12,12 tetraphosphonia-1,4,9,12 cyclohexadecane

A

7688-25-7

1,4-di(diphenylphosphino)-butane

B

4151-27-3

1,4-bis(diphenylphosphinyl)butane

Conditions
ConditionsYield
With sodium hydroxide In ethanol for 14h; Heating; Yield given. Yields of byproduct given;
110-56-5

1,4-dichlorobutane

829-85-6

diphenylphosphane

7688-25-7

1,4-di(diphenylphosphino)-butane

Conditions
ConditionsYield
With potassium hydroxide 1.) DMSO, 20 deg C, 2.) 50 deg C, 1 h; Yield given. Multistep reaction;
603-35-0

triphenylphosphine

110-56-5

1,4-dichlorobutane

7688-25-7

1,4-di(diphenylphosphino)-butane

Conditions
ConditionsYield
With lithium In tetrahydrofuran at 0℃; for 0.5h;
113237-53-9

tetrachlorure d'octaphenyl-1,1,6,6,9,9,14,14 tetraphosphonia-1,6,9,14 cyclohexadecadiene-3,11

7688-25-7

1,4-di(diphenylphosphino)-butane

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 95 percent / Hydrogen / Raney-Ni / 2.5 h / 20 °C / 41253.3 Torr
2: 5N NaOH / aq. ethanol / 14 h / Heating
View Scheme

1,4-Bis(diphenylphosphino)butane Specification

The 1,4-Bis(diphenylphosphino)butane, with the CAS registry number 7688-25-7, is also known as Phosphine, 1,1'-(1,4-butanediyl)bis(1,1-diphenyl-. It belongs to the product categories of Phosphines; Ligand; Phosphine Ligands; Synthetic Organic Chemistry. Its EINECS registry number is 231-698-7. This chemical's molecular formula is C28H28P2 and molecular weight is 426.469442. Its IUPAC name is called 4-diphenylphosphanylbutyl(diphenyl)phosphane. This chemical's classification code is TSCA Flag P [A commenced PMN (Premanufacture Notice) substance].

Physical properties of 1,4-Bis(diphenylphosphino)butane: (1)ACD/LogP: 9.25; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 9.25; (4)ACD/LogD (pH 7.4): 9.25; (5)ACD/BCF (pH 5.5): 1000000; (6)ACD/BCF (pH 7.4): 1000000; (7)ACD/KOC (pH 5.5): 2578029; (8)ACD/KOC (pH 7.4): 2578029; (9)#Freely Rotating Bonds: 9; (10)Flash Point: 299.5 °C; (11)Enthalpy of Vaporization: 78.93 kJ/mol; (12)Boiling Point: 542 °C at 760 mmHg; (13)Vapour Pressure: 2.92E-11 mmHg at 25°C.

Uses of 1,4-Bis(diphenylphosphino)butane: it can be used to produce 1,4-tetramethylene-bis(diphenylphosphine sulphide) by heating. This reaction will need reagent 0.5M S8 and solvent toluene with reaction time of 5 min. The yield is about 85%.

1,4-Bis(diphenylphosphino)butane can be used to produce 1,4-tetramethylene-bis(diphenylphosphine sulphide) by heating

When you are using this chemical, please be cautious about it as the following:
This chemical may cause inflammation to the skin or other mucous membranes. It is irritating to eyes, respiratory system and skin. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. Whenever you will contact it, please wear suitable protective clothing, gloves and eye/face protection.

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: C1=CC=C(C=C1)P(CCCCP(C2=CC=CC=C2)C3=CC=CC=C3)C4=CC=CC=C4
(2)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
(3)InChIKey: BCJVBDBJSMFBRW-UHFFFAOYSA-N

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