809551

Methyltriphenylphosphonium methylcarbonate

• Synonyme(s) : Perosa-Selva-Noè Vinylation Reagent
• Formule empirique (notation de Hill): C₂₁H₂₁O₃P
• Numéro CAS: 1067966-63-5
• Poids moléculaire : 352.36
• Code UNSPSC : 12352108
• ID de substance PubChem : 329769168
• Nomenclature NACRES : NA.22

Propriétés

• Forme: powder
• Capacité de réaction: reaction type: C-C Bond Formation
• Pf: 146-151 °C
• Température de stockage: 2-8°C
• Chaîne SMILES: C[P+](C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3.[O-]C(OC)=O
• InChI: 1S/C19H18P.C2H4O3/c1-20(17-11-5-2-6-12-17,18-13-7-3-8-14-18)19-15-9-4-10-16-19;1-5-2(3)4/h2-16H,1H3;1H3,(H,3,4)/q+1;/p-1
• Clé InChI: FALLFMKOBMQQNQ-UHFFFAOYSA-M

Description

Description générale

Methyltriphenylphosphonium methylcarbonate, also known as Perosa-Selva-Noè vinylation reagent, is a green reagent for performing halide and base-free Wittig reaction. It can be prepared by reacting triphenylphosphine with dimethylcarbonate.

Application

[Ph₃PCH₃][CH₃OCO₂] is a latent ylide that promotes Wittig vinylation of aldehydes and ketones. Alkenes are obtained simply by mixing [Ph₃PCH₃][CH₃OCO₂] and the carbonyl and heating in a solvent (no base, no halides, and no inorganic byproducts needed).

Autres remarques

Methyltriphenylphosphonium Methylcarbonate, an All-In-One Wittig Vinylation Reagent

Informations sur la sécurité

• Pictogrammes: GHS07
• Mention d'avertissement: Warning
• Mentions de danger: H315,H319,H335
• Conseils de prudence: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Classification des risques: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Organes cibles: Respiratory system
• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable