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1663-45-2 - 1,2-Bis(diphenylphosphino)ethane, 97+% - Diphos - Dppe - A11419 - Alfa Aesar

A11419 1,2-Bis(diphenylphosphino)ethane, 97+%

Codice CAS
1663-45-2
Sinonimi
Diphos
Dppe

Dimensioni Prezzo ($) Quantità Disponibilità
5g 36,40
25g 105,00
100g 382,00
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1,2-Bis(diphenylphosphino)ethane, 97+%

MDL
MFCD00003047
EINECS
216-769-2

Proprietà chimiche

Formula
C26H24P2
Peso formula
398.42
Punto di fusione
138-143°
Sensibilità
Air Sensitive
Solubilità
Soluble in acetone, methanol and alcoholic hydrochloric acid.

Applicazioni

1,2-Bis(diphenylphosphino)ethane is a bidendate ligand used in coordination chemistry to prepare metal complexes. It is involved in the metal-catalyzed allylic alkylation and decarboxylation of allylic esters. It is also used in 1,3-diene synthesis. Further, it is used in cycloaddition reactions and carbonylation reactions. In addition to this, it is used to prepare bis(dicyclohexylphosphino)ethane by hydrogenation.

Note

Air sensitive. Incompatible with strong oxidizing agents.

Letteratura

Chelating phosphorus ligand.

The complex with NiCl2 catalyzes the coupling of haloaromatic compounds with Grignard reagents: J. Org. Chem., 49, 478 (1984).

The catalyst prepared in situ with Sodium tetrachloropalladate(II)­ hydrate, 11886, catalyzes the carbonylation of allylic halides at atmospheric pressure: Chem. Lett., 1873 (1989):

Useful replacement for Triphenyl­phosphine, L02502, in the Staudinger and Mitsunobu reactions, with the advantage of easier separation of the by-product bis(phosphine oxide) due to its higher polarity compared with triphenylphosphine oxide: Tetrahedron Lett., 39, 7787 (1998). Has also been used as an alternative to PPh3 for the halodehydroxylation of alcohols, e.g. in combination with Hexachloroethane, L14297, alkyl chlorides are formed; the phosphine oxide by-product can readily be separated by filtration: Tetrahedron Lett., 42, 2459 (2001).

Afonin, M. Y.; Smolentsev, A. I.; Konchenko, S. N.; Petrov, P. A. Cyanato- and thiocyanato-substituted triangular clusters of molybdenum, [Mo3S4(dppe)3X3]+ (X = NCO-, NCS-; dppe = 1,2-bis(diphenylphosphino)ethane). J. Coord. Chem. 2015, 68 (3), 422-431.

Bloomfield, A. J.; Sheehan, S. W.; Collom, S. L.; Crabtree, R. H.; Anastas, P. T. A heterogeneous water oxidation catalyst from dicobalt octacarbonyl and 1,2-bis(diphenylphosphino)ethane. New J. Chem. 2014, 38 (4), 1540-1545.

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: P280g-P305+P351+P338

Wear protective gloves. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Altri riferimenti

Beilstein
761261
Codice tariffe armonizzato
2931.90
TSCA
Yes

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