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859-65-4 - (Benzoylmethylene)triphenylphosphorane, 98+% - alpha-(Triphenylphosphoranylidene)acetophenone - A12184 - Alfa Aesar

A12184 (Benzoylmethylene)triphenylphosphorane, 98+%

Codice CAS
859-65-4
Sinonimi
alpha-(Triphenylphosphoranylidene)acetophenone

Dimensioni Prezzo ($) Quantità Disponibilità
5g 31,50
25g 121,00
100g 388,00
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(Benzoylmethylene)triphenylphosphorane, 98+%

MDL
MFCD00014088
EINECS
212-727-2

Proprietà chimiche

Formula
C26H21OP
Peso formula
380.43
Punto di fusione
183-186°
Sensibilità
Air Sensitive
Solubilità
Soluble in Methanol (almost transparency).

Applicazioni

It is used in organic synthesis, wittig reagent.

Note

Air sensitive. Store in refrigerator. Store away from oxidizing agent, air.

Letteratura

Meenakshisundaram Kalyanasundari; Krishnaswamy Panchanatheswaran; Ward T. Robinson; Huo Wen. Reactions of benzoylmethylenetriphenylphosphorane with mercury(II) halides: spectral and structural characterization of [(C6H5)3PCHCOC6H5 · HgCl2]2 · 2CH3OH and [(C6H5)3PCHCOC6H5 · HgI2]2. Journal of Organometallic Chemistry. 1995, 491 (1-2), 103-109.

M. Mohan Raj; A. Dharmaraja; K. Panchanatheswaran; K.A. Venkatesan; T.G. Srinivasan; P.R. Vasudeva Rao. Extraction of fission palladium(II) from nitric acid by benzoylmethylenetriphenylphosphorane (BMTPP). Analytica Chimica Acta. 2006, 84 (1-2), 118-124.

Stable ylide which reacts with aldehydes to give ɑß-unsaturated ketones. See Appendix 1. For preparation of unsubstituted vinyl ketones from this and related ylides with paraformaldehyde, see: Synthesis, 31 (1970).

Can be converted by C-acylation to a diacylphosphorane, which can be oxidized to a 1,2,3-triketone. For reaction scheme, see N,O-Bis(trimethyl­silyl)­acetamide, L00183.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Dichiarazioni precauzionali: 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.

Altri riferimenti

Beilstein
620285
Codice tariffe armonizzato
2931.39
TSCA
No
RTECS
AN0540000

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