93093

Triphenylphosphine, polymer-bound

100-200 mesh, extent of labeling: ~3 mmol/g triphenylphosphine loading

• Synonim(y): Copolymer of styrene and divinylbenzene, diphenylphosphinated, Diphenylphosphino-polystyrene, Polystyrene crosslinked with divinylbenzene, diphenylphosphinated
• Wzór liniowy: -C₆H₄P(C₆H₅)₂
• Numer CAS: 39319-11-4
• Masa cząsteczkowa: 262.29
• Numer MDL: MFCD00148025
• Kod UNSPSC: 12352200
• Identyfikator substancji w PubChem: 57653515
• NACRES: NA.22

Właściwości

• Postać: solid
• Poziom jakości: 200
• przydatność reakcji: reaction type: Buchwald-Hartwig Cross Coupling Reaction; reaction type: Heck Reaction; reaction type: Hiyama Coupling; reaction type: Negishi Coupling; reaction type: Sonogashira Coupling; reaction type: Stille Coupling; reaction type: Suzuki-Miyaura Coupling; reaction type: solution phase peptide synthesis; reagent type: ligand
• zakres etykietowania: ~3 mmol/g triphenylphosphine loading
• macierz: crosslinked with 2% DVB
• wielkość cząstki: 100-200 mesh
• grupa funkcyjna: phosphine oxide
• ciąg SMILES: c1ccc(cc1)P(c2ccccc2)c3ccccc3
• InChI: 1S/C18H15P/c1-4-10-16(11-5-1)19(17-12-6-2-7-13-17)18-14-8-3-9-15-18/h1-15H
• Klucz InChI: RIOQSEWOXXDEQQ-UHFFFAOYSA-N

Opis

Zastosowanie

Polymer-bound triphenylphosphine is a solid-supported reagent that can be used as a better alternative to triphenylphosphine in the Mitsunobu reaction.
It can also be used:

• For the esterification of alkylphosphonic acids using primary alcohols in the presence of iodine and imidazole.
• To catalyze the conversion of 3-[3-(1,3-dioxolan-2-yl)-1-hydroxypropyl]pyridine to 3-[1-bromo-3-(1,3-dioxolan-2-yl)propyl]pyridine using carbon tetrabromide.
• To isomerize (Z)-nitro olefins to the (E)-isomers.
• To prepare polymer-bound ylides which are useful in Wittig reactions.
• To convert alcohols or carboxylic acids to the corresponding chlorides.
• In combination with carbon tetrachloride for the coupling N-alkoxycarbonyl α-amino acids and primary amines to form the corresponding amides.

Inne uwagi

Polymer-bound triphenylphosphine is used for preparing polymer-bound yields which are highly useful for Wittig reactions; removal of the polymer at the end of the reaction removes all the phosphine oxide.

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• Kod klasy składowania: 11 - Combustible Solids
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