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(Carbethoxymethylene)triphenylphosphorane (Carbethoxymethylidene)triphenylphosphorane (Ethoxycarbonylmethylidene)triphenylphosphorane ... Molar mass: 348.382 g·mol ...
Carbomethoxymethylenetriphenylphosphorane Names Preferred IUPAC name. Methyl (triphenyl- ...
Molar mass: 326.288 g·mol −1 Appearance Colorless solid Density: 1.184 g/mL Melting point: 48 to 50 °C (118 to 122 °F; 321 to 323 K) Boiling point: 244 °C (471 °F; 517 K) at 10 mmHg Vapor pressure: 1 mmHg (193 °C) [1] Hazards Occupational safety and health (OHS/OSH):
Crystallographic characterization of the colourless ylide reveals that the phosphorus atom is approximately tetrahedral. The PCH 2 centre is planar and the P=CH 2 distance is 1.661 Å, which is much shorter than the P-Ph distances (1.823 Å). [5]
The alkylphosphonium salt is deprotonated with a strong base such as n-butyllithium: [Ph 3 P + CH 2 R]X − + C 4 H 9 Li → Ph 3 P=CHR + LiX + C 4 H 10. Besides n-butyllithium (n BuLi), other strong bases like sodium and potassium t-butoxide (t BuONa, t BuOK), lithium, sodium and potassium hexamethyldisilazide (LiHMDS, NaHMDS, KHDMS, where HDMS = N(SiMe 3) 2), or sodium hydride (NaH) are also ...
Methoxymethylenetriphenylphosphorane Names IUPAC name. Methoxymethylidene(triphenyl)- ... Molar mass: 306.345 g·mol −1 Except where otherwise noted, ...
Triphenylphosphine (IUPAC name: triphenylphosphane) is a common organophosphorus compound with the formula P(C 6 H 5) 3 and often abbreviated to P Ph 3 or Ph 3 P. It is versatile compound that is widely used as a reagent in organic synthesis and as a ligand for transition metal complexes, including ones that serve as catalysts in organometallic chemistry.
Triphenylphosphine oxide (often abbreviated TPPO) is the organophosphorus compound with the formula OP(C 6 H 5) 3, also written as Ph 3 PO or PPh 3 O (Ph = C 6 H 5).It is one of the more common phosphine oxides.