Phosphine Specialties
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Pharma and Fine Chemical Reagents

Trialkylphosphines are widely used as processing aides for a variety of common reactions employed by the pharmaceutical and fine chemical industries. These reactions include the Staudinger, Mitsunobu and Wittig reactions used for amine, ester and olefin synthesis. In addition, tertiary alkylphosphines are powerful reducing agents for disulfide reduction. Tertiary alkylphosphines are also used at a catalytic level in transformations such as the Baylis-Hillman and Rauhut-Currier reactions. As opposed to triphenylphosphine, the alkyl derivatives generally provide faster kinetics, improved selectivity and ease of work-up. Trialkylphosphines are marketed under the Cytec CYTOP® organophosphine trade name such as CYTOP 320 (triethylphosphine), CYTOP 340 (tributryphosphine), CYTOP 341 (triisobutylphosphine), CYTOP 380 (trioctylphosphine) and CYTOP 208 (tris(3-hydroxypropyl)phosphine).

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Trade Name

C.A.S. Number

Chemical Name

Product Datasheets

CYTOP 141

[4023-52-3]

mono isobutylphosphine

 

CYTOP 142

[2501-94-2]

mono tert-butylphosphine

 

CYTOP 155

[15573-36-1]

mono cy-pentylphosphine

 

CYTOP 166

[822-68-4]

mono cy-hexylphosphine

 

CYTOP 183

[82164-75-8]

mono (2,4,4-trimethylpentyl)phosphine

 

CYTOP 241

[4006-38-6]

di isobutylphosphine

 

CYTOP 242

[819-19-2]

di tert-butylphosphine

 

CYTOP 255

[39864-68-1]

di cy-pentylphosphine

 

CYTOP 266

[829-84-5]

di cy-hexylphosphine

 

CYTOP 222

[148432-44-4]

di norbornylphosphine

 

CYTOP 170

[328952-55-8]

2-phosphabicyclo[3.3.1]nonane, 4,8-dimethyl

 

CYTOP 216

[26088-25-5]

1,3,5,7-tetramethyl-2,4,8 trioxa-6-phosphaadamantane

 

CYTOP 320

[554-70-1]

triethylphosphine

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CYTOP 330

[2234-97-1]

tripropylphosphine

 

CYTOP 340

[998-40-3]

tributylphosphine

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CYTOP 341

[4125-25-1]

triisobutylphosphine

 

CYTOP 355

[7650-88-6]

tri cy-pentylphosphine

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CYTOP 360

[4168-73-4]

trihexylphosphine

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CYTOP 366

[2622-14-2]

tri cy-hexylphosphine

 

CYTOP 380

[4731-53-7]

trioctylphosphine

 

CYTOP 331

[4023-53-4]

tris(2-cyanoethyl)phosphine

 

CYTOP 208

[4706-17-6]

tris(3-hydroxypropyl)phosphine

 

CYTOP 198

[289622-48-6]

9-isobutyl-9-phosphabicyclo[3.3.1]nonane

 

CYTOP 224

[106872-07-5]

9-cycloheyyl-9-phosphabicyclo[3.3.1]nonane

 

CYTOP 292

[97739-46-3]

1,3,5,7-tetramethyl-2,4,8-trioxa-6-phenyl-6-phosphaadamantane

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CYTOP 228

[93428-50-3]

4-phosphorinanone-1-isobutyl-2,2,6,6-tetramethyl

 

CYTOP 318

[146091-21-6]

1,2-(bis-isobutylphosphino)ethane

 

 
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