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Reactivity vs. Stability of Cyclopropenium Substituted Phosphonium Salts
The stability vs. reactivity of electrophilic 3-(triphenylphosphonio)-cyclopropenium salts towards a neutral nucleophile, such as triphenylphosphane, is reported. Depending on the nature of cyclopropenyl substituents (R), the three-membered cyclic structure is preserved (R = Ph) or evolves by ring opening to the isomeric linear allene (R = Mes). The respective formation of 1,3-bis(triphenylphosphonio)-2,3-diphenylcyclopropene and 3,3-bis(triphenylphosphonio)-1,1-dimesitylallene products is rationalized on the basis of steric and electrostatic constraints.
Because enzymes can increase reaction rates by enormous factors and tend to be very specific, Recommanded Product: Sodium trifluoromethanesulfonate, typically producing only a single product in quantitative yield, they are the focus of active research.you can also check out more blogs about 2926-30-9
Reference£º
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI