Di-tert-butyl(neopentyl)phosphonium tetrafluoroborate

• CAT Number: L034490
• CAS Number: 886059-84-3
• Molecular Formula: C13H30BF4P
• Molecular Weight: 304.16
• Purity: ≥95%
• IUPAC Name: ditert-butyl(2,2-dimethylpropyl)phosphanium;tetrafluoroborate
• InChI: InChI=1S/C13H29P.BF4/c1-11(2,3)10-14(12(4,5)6)13(7,8)9;2-1(3,4)5/h10H2,1-9H3;/q;-1/p+1
• InChIKey: UWNPUGYQGIWNRI-UHFFFAOYSA-O

Di-tert-butyl(neopentyl)phosphonium tetrafluoroborate(CAT: L034490) is a specialized phosphonium salt used in organic and organometallic chemistry, particularly in catalysis and phase-transfer reactions. The compound features a phosphonium cation with two tert-butyl groups and one neopentyl group attached to the phosphorus atom, paired with a tetrafluoroborate anion (BF₄⁻). Its bulky alkyl groups confer steric protection around the phosphorus center, making it useful for controlling reactivity in chemical transformations. This phosphonium salt is commonly employed as a catalyst or a reagent in reactions like Wittig-type transformations, nucleophilic substitution, and polymerization processes. The tetrafluoroborate counterion further enhances its solubility and stability in various solvents, broadening its utility in both industrial and laboratory-scale applications.