text.skipToContent text.skipToNavigation

Maximum quantity allowed is 999

Please select the quantity

Phosphines [Chemical Structural Class]

 Phosphorus belongs to group 15 in the periodic table, the same as nitrogen, and it binds with carbon to form various organophosphate compounds. However, since nitrogen belongs to the second-period and phosphorus to the third, they differ in atomic size, ionization energy and electronegativity etc. Therefore, organophosphate compounds show a characteristic reactivity which organic nitrogen compounds do not have, and it is utilized as a versatile reaction reagent in organic synthesis. For example, phosphorus has a high affinity for oxygen: phosphorus ylide and phosphonate are utilized for the Wittig reaction and the Horner-Emmons reaction, respectively, and it extracts oxygen from aldehydes to produce olefins. Phosphine extracts oxygen from alcohols to produce esters in the Mitsunobu reaction.
 Another feature of phosphine includes bearing a soft lone pair. Therefore, it forms comparatively stable complexes with transition metals such as palladium. This transition metal complex is used frequently as a catalyst in reactions such as the Suzuki-Miyaura cross-coupling reaction and the Heck reaction.1) Although phosphine also has a trigonal pyramidal structure like amines, its rotational barrier energy is considerably higher than the corresponding amine. Therefore, a phosphine which has three different substituents has optical isomers. This optically-active phosphine is utilized for asymmetric syntheses as a P-chiral ligand.2) In this section, we introduce tri-substituted alkyl and aryl phosphines, such as tricyclohexylphosphine and triphenylphosphine.

Literature

120 Results Found
View:  List
Product Number D4500
CAS RN 210169-40-7
Purity / Analysis Method: >99.0%(HPLC)

Product Number D4501
CAS RN 566940-03-2
Purity / Analysis Method: >99.0%(HPLC)

Product Number S0929
CAS RN 210169-54-3
Purity / Analysis Method: >99.0%(HPLC)

Product Number S0930
CAS RN 244261-66-3
Purity / Analysis Method: >99.0%(HPLC)

Product Number B1138
CAS RN 6737-42-4
Purity / Analysis Method: >98.0%(GC)

Product Number B1246
CAS RN 7688-25-7
Purity / Analysis Method: >98.0%(GC)

Product Number B2630
CAS RN 84783-64-2
Purity / Analysis Method: >98.0%(GC)

Product Number B2709
CAS RN 161265-03-8
Purity / Analysis Method: >98.0%(GC)

Product Number B2710
CAS RN 97239-80-0
Purity / Analysis Method: >98.0%(T)

Product Number B2717
CAS RN 261733-18-0
Purity / Analysis Method: >98.0%(HPLC)(N)

Product Number B2867
CAS RN 166330-10-5
Purity / Analysis Method: >98.0%(GC)

Product Number B3196
CAS RN 136274-57-2
Purity / Analysis Method: >98.0%(T)

Product Number:   D4500 | Purity / Analysis Method:   >99.0%(HPLC)

Product Number:   D4501 | Purity / Analysis Method:   >99.0%(HPLC)

Product Number:   S0929 | Purity / Analysis Method:   >99.0%(HPLC)

Product Number:   S0930 | Purity / Analysis Method:   >99.0%(HPLC)

Product Number:   B1138 | Purity / Analysis Method:   >98.0%(GC)

Product Number:   B1246 | Purity / Analysis Method:   >98.0%(GC)

Product Number:   B2630 | Purity / Analysis Method:   >98.0%(GC)

Product Number:   B2709 | Purity / Analysis Method:   >98.0%(GC)

Product Number:   B2710 | Purity / Analysis Method:   >98.0%(T)

Product Number:   B2717 | Purity / Analysis Method:   >98.0%(HPLC)(N)

Product Number:   B2867 | Purity / Analysis Method:   >98.0%(GC)

Product Number:   B3196 | Purity / Analysis Method:   >98.0%(T)

Session Status
Your session will timeout in 10 minutes. You will be redirected to the HOME page after session timeout. Please click the button to continue session from the same page. minute. You will be redirected to the HOME page after session timeout. Please click the button to continue session from the same page.

Your session has timed out. You will be redirected to the HOME page.