Tetrakis(triphenylphosphine)palladium
Synonym(s):Palladium-tetrakis(triphenylphosphine);Pd(PPh3)4;Tetrakis(triphenylphosphine)-palladium(0)
- CAS NO.:14221-01-3
- Empirical Formula: C72H60P4Pd
- Molecular Weight: 1155.561844
- MDL number: MFCD00010012
- EINECS: 238-086-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-12-18 14:15:30
What is Tetrakis(triphenylphosphine)palladium?
Chemical properties
yellow crystals
The Uses of Tetrakis(triphenylphosphine)palladium
Tetrakis(triphenylphosphine)palladium(0), commonly referred to as Pd(PPh3)4, is a high-yielding catalyst extensively utilized in palladium-catalyzed coupling reactions. It has prominent applications in various chemical processes, including the Heck reaction, Suzuki coupling, Stille coupling, Sonogashira coupling, and Negishi coupling, making it an indispensable tool in the field of organic synthesis.
What are the applications of Application
Palladium-Catalyzed Three-Component Reactions for the Synthesis of Imidazolidinones, Such as :
Once the Schlenk tube containing K2CO3 (55 mg, 0.40 mmol) is flamed, dried, and filled with argon, Tetrakis(triphenylphosphine)palladium (12 mg, 0.010 mmol), PMB-protected 2,3-allenylamine (37 mg, 0.20 mmol), iodobenzene (58 mg, 0.28 mmol), phenyl isocyanate (36 mg, 0.30 mmol), and CH3CN (4 mL) are added sequentially. The resulting solution is heated to and stirred at 70°C. When the reaction is completed, as monitored by TLC, the solvent is evaporated under reduced pressure, and the residue is purified by chromatography on silica gel (petroleum ether: ethyl acetate = 7:1) to afford the corresponding imidazolinone (72 mg, Y. 96%) as an oil.
Reactions
Catalyst for Suzuki coupling of chiral secondary organoboronic esters.
Palladium-catalyzed SNAr reactions for the synthesis of heteroaryl ethers.
Catalyst for cross-coupling of a-diazocarbonyl compouns with arylboronic acids.
Diastereoselective synthesis of trans-1,2-diazetidines.
Palladium-catalyzed alkynyl iminium ion cyclization.
Widely used reagent in a variety of transformations including Heck arylation, enyne and diyne cycloisomerization.
Catalysts for cross-coupling.
Flammability and Explosibility
Non flammable
storage
Tetrakis(triphenylphosphine)palladium is air and light sensitive and should be stored in an inert atmosphere in the absence of light. It can be handled for short periods quickly in the air but best results are achieved by handling in a glove box or glove bag under argon or nitrogen.
Purification Methods
The palladium complex is recrystallised from EtOH. It should not be heated excessively as it dissociates to Pd(PPh3)3 and PdPh3 and then further to Pd(PPh3)2 and PPh3. It is also air sensitive as PPh3 is oxidized to PPh3O. It is stable only for short periods because on exposure to heat or air it turns from yellow to orange and dissociates in solution so the solutions should be used directly. However it can always be prepared freshly by mixing Pd(NO3)2 (2mmols) and PPh3(2mmols) in hot *C6H6 when vigorous evolution of nitric oxide occurs and a solid mass separates. This is collected and crystallised from EtOH. Its cryoscopic constant in *C6H6 (at 0.601g/20mL) corresponds to M 1156 [Malatesta & Angoletti J Chem Soc 1186 1957]. It is a useful catalyst for Suzuki coupling reactions [Trost Tetrahedron 33 2615 1977]. [Beilstein 16 IV 954.] This palladium catalyst bound to a polymer support (~0.06mmol/g) is also commercially available [cf Fenger & LeDrain Tetrahedron Lett 39 4287 1998]. [Beilstein 16 IV 954.]
Properties of Tetrakis(triphenylphosphine)palladium
Melting point: | 103-107 °C |
vapor pressure | 0Pa at 25℃ |
storage temp. | 2-8°C |
solubility | Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly) |
appearance | Yellow solid |
form | Fine Powder or Platelets |
color | Bright yellow to khaki |
Water Solubility | insoluble |
Hydrolytic Sensitivity | 7: reacts slowly with moisture/water |
Sensitive | Light Sensitive/Air Sensitive |
BRN | 6704828 |
Stability: | Light Sensitive, Moisture Sensitive |
CAS DataBase Reference | 14221-01-3(CAS DataBase Reference) |
EPA Substance Registry System | Palladium, tetrakis(triphenylphosphine)-, (T-4)- (14221-01-3) |
Safety information for Tetrakis(triphenylphosphine)palladium
Signal word | Warning |
Pictogram(s) |
Exclamation Mark Irritant GHS07 |
GHS Hazard Statements |
H302:Acute toxicity,oral |
Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P501:Dispose of contents/container to..… |
Computed Descriptors for Tetrakis(triphenylphosphine)palladium
InChIKey | NANALCPCPBPJAB-UHFFFAOYSA-N |
Tetrakis(triphenylphosphine)palladium manufacturer
Vineeth Precious Catalysts Pvt Ltd
Omkar Lab
ALS INDIA LIFE SCIENCES
Metal Chem India
Johnson Matthey Chemicals India Pvt Ltd
Innovassynth Technologies (I) Ltd.
Vineeth Precious Catalysts Pvt. Ltd.
Anand Agencies
Omkar Lab
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