Chloro(triphenylphosphine)gold(I)
CAS 14243-64-2
Au(PPh₃)Cl is the standard precatalyst of homogeneous gold chemistry — activated with silver salts it generates the cationic Au(I) species behind alkyne and allene activation catalysis, and it anchors gold-cluster and metallodrug research.
Typical specification
| Molecular formula | Au(P(C₆H₅)₃)Cl |
|---|---|
| Molecular weight | 494.71 |
| Assay | ≥ 98% |
| Gold content | ≥ 39.3% |
| Appearance | White crystals |
| Solubility | Soluble in DCM, chloroform |
| HS code (export) | 2843300000 |
Lot-specific COA issued with every shipment. SDS and ICP elemental impurity data available on request.
Where Au(PPh₃)Cl is used
Cationic gold(I) catalysis
With AgOTf, AgSbF₆ or AgNTf₂ activation it forms [Au(PPh₃)]⁺ catalysts for hydration, hydroamination, enyne cycloisomerization and A³ coupling — the workhorse system of gold catalysis.
Cluster and medicinal chemistry
The starting complex for phosphine gold clusters and auranofin-related metallodrug analogues in research.
Storage and shipping
Storage. Store sealed, cool and dark; air-stable.
Shipping. Ships by commercial courier with SDS; gold-compound export formalities confirmed per order.
Packaging. 1 g · 5 g · 25 g
Synonyms
- Triphenylphosphine gold chloride
- (PPh3)AuCl
- Gold phosphine chloride
Frequently asked questions
Which silver activator pairs with this precatalyst?
AgOTf and AgBF₄ (both in our catalog) are the common activators; the counterion tunes catalyst electrophilicity. Ordering the pair together ships in one parcel with combined documentation.
How is pricing structured?
Quotes reference the day's gold price on assayed contained metal plus a stated conversion charge, lockable at order confirmation.
Do you take back spent material?
Yes — residues and off-spec lots are assayed on receipt and the recovered metal credited against your next order.