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A15878 Methyltriphenylphosphonium bromide, 98+%

Número CAS
Nombre Alternativo

Stock No. Tamaño Precio ($) Cantidad Disponibilidad
A15878-18 50g 29,20
A15878-30 250g 96,90
A15878-0B 1000g 362,00
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Methyltriphenylphosphonium bromide, 98+%


Propiedades químicas

Peso molecular
Punto de fusión
Storage & Sensitivity
Hygroscopic. Ambient temperatures.
Soluble in water.


Methyltriphenylphosphonium bromide is used for methylenation through the Wittig reaction. It is utilized in the synthesis of an enyne and 9-isopropenyl -phenanthrene by using sodium amide as reagent. It is a lipophilic molecule and used to deliver molecules to specific cell components. Further, it acts as an antineoplastic agent.


Hygroscopic. Incompatible with strong oxidizing agents.

Referencias documentales

Precursor of Wittig ylide for methylenation of carbonyl compounds (see Appendix 1). See, e.g.: Org. Synth. Coll., 5, 751 (1973). A simplified procedure using K2CO3 in triglyme has been reported: Synth. Commun., 22, 513 (1992).

Where the ylide is insufficiently reactive, a further proton can be removed by s-BuLi or t-BuLi, and the resulting lithio ylide reacted with hindered ketones such as fenchone: J. Am. Chem. Soc., 104, 4724 (1982). Reaction of the lithio ylide with an epoxide generates a new ylide, with which Wittig olefination of aldehydes gives trans-homoallylic alcohols (same ref.):

Aissaoui, T.; AlNashef, I. M.; Hayyan, M.; Hashim, M. A. Neoteric FT-IR investigation on the functional groups of phosphonium-based deep eutectic solvents. Spectrochim. Acta Mol. Biomol. Spectrosc. 2015, 149, 588-591.

Chou, Y. H.; Takasugi, S.; Goseki, R.; Ishizone, T.; Chen, W. C. Nonvolatile organic field-effect transistor memory devices using polymer electrets with different thiophene chain lengths. Polym. Chem. 2014, 5 (3), 1063-1071.

Indicaciones de peligro y de precaución del GHS

Indicaciones de peligro (UE): H302-H315-H319-H335

Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Indicaciones de precaución: P261-P280a-P305+P351+P338-P304+P340-P405-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves and eye/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Otras referencias

Clase de peligro
Grupo de embalaje
Código de tarifa arancelaria unificado


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