Uses
Triphenylvinylphosphonium Bromide has been used to enhance the thermal stability of epoxy resin. It is commonly used as a Wittig reagent.
Chemical Properties
WHITE TO BEIGE FINE CRYSTALLINE POWDER
Uses
Reactant involved in:
- Asymmetric conjugate addition and intramolecular cyclization
- Condensation with benzoxazinediones
- Intramolecular dehydrobromination
- Schweizer reaction
- Cycloaddition with nitro ketone Baylis-Hillman adducts
', 'Reagent for the synthesis of heterocycles.
Preparation
The preparation of TriphenylvinylphosphoniuM BroMide has been accomplished by treatment of ethylenebis(triphenylphosphonium) dibromide with borate ion (32%), (2-chloroethyl)triphenylphosphonium bromide with Triethylamine (72%), (2-bromoethyl)triphenylphosphonium bromide with Silver(I) Oxide (85%), and (2- phenoxyethyl)triphenylphosphonium bromide with boiling ethyl acetate (92%).
reaction suitability
reaction type: C-C Bond Formation
storage
hygroscopic; irritant; produces sneezing in many individuals. Use in a fume hood.
