330752

Triphosgene

reagent grade, 98%

• Sinonimo/i: Bis(trichloromethyl) carbonate
• Formula condensata: Cl₃COCOOCCl₃
• Numero CAS: 32315-10-9
• Peso molecolare: 296.75
• Beilstein: 1787583
• Numero CE: 250-986-3
• Numero MDL: MFCD00062848
• Codice UNSPSC: 12352108
• ID PubChem: 24859885
• NACRES: NA.22

Proprietà

• Grado: reagent grade
• Saggio: 98%
• Stato: powder
• Impiego in reazioni chimiche: reaction type: Coupling Reactions
• P. ebollizione: 203-206 °C (lit.)
• Punto di fusione: 79-83 °C (lit.)
• Gruppo funzionale: carbonate; chloro
• Temperatura di conservazione: 2-8°C
• Stringa SMILE: ClC(Cl)(Cl)OC(=O)OC(Cl)(Cl)Cl
• InChI: 1S/C3Cl6O3/c4-2(5,6)11-1(10)12-3(7,8)9; UCPYLLCMEDAXFR-UHFFFAOYSA-N

Descrizione

Descrizione generale

Triphosgene [Bis(trichloromethyl)carbonate] is a versatile organic reagent used in organic synthesis alternative to phosgene. A catalytic amount of triphosgene is particularly used in chloroformylations, carbonylations, chlorinations, and dehydration reactions.
It is also commonly employed as a coupling agent in the synthesis of carbonyl compounds.

Applicazioni

Triphosgene can be employed as a reagent to prepare:

• Thiocarbonates from thiols and alcohols by one-pot, three-component reaction.
• Substituted azetidin-2-ones from acids and imines via ketene–imine cycloaddition reaction.
• Methyl (S)-2-isocyanato-3-phenylpropanoate from L-phenylalanine methyl ester hydrochloride in the presence of sodium bicarbonate.
• Acyl azides derivatives from various carboxylic acids and sodium azide.
• Immunosuppressant agent cyclosporin by solid-phase peptide synthesis.
• Allyl azides from allyl alcohols and sodium azide in one pot method.
• Esterification coupling reagent di-2-thienyl carbonate, from 2(5H)-thiophenone.
• 2-Chloronicotinaldehydes via cyclization of the corresponding enamides.

Informazioni sulla sicurezza

• Pittogrammi: GHS06,GHS05
• Avvertenze: Danger
• Indicazioni di pericolo: H314,H330
• Consigli di prudenza: P260 - P271 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Classi di pericolo: Acute Tox. 1 Inhalation - Skin Corr. 1B
• Codice della classe di stoccaggio: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• Classe di pericolosità dell'acqua (WGK): WGK 2
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable
• Dispositivi di protezione individuale: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges