Cookies disclaimer

I agree Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our website without changing the browser settings you grant us permission to store that information on your device.

A11709 (Formylmethylene)triphenylphosphorane, 97%, may cont. up to ca 3% water

CAS-Nummer
2136-75-6
Synonyme
(Triphenylphosphoranylidene)acetaldehyde

Stock No. Größe Preis ($) Menge Verfügbarkeit
A11709-09 10g 56,80
A11709-14 25g 132,00
A11709-22 100g 440,00
Zum Warenkorb hinzufügen Zur Angebotsanfrage hinzufügen Artikel anzeigen

(Formylmethylene)triphenylphosphorane, 97%, may cont. up to ca 3% water

MDL
MFCD00006994
EINECS
218-375-6

Chemische Eigenschaften

Formel
(C6H5)3P=CHCHO
Molmasse
304.33
Schmelzpunkt
183-188°
Storage & Sensitivity
Keep Cold. Air Sensitive.
Löslichkeit
Soluble in Chloroform, Methanol.

Anwendungen

(Formylmethylene)triphenylphosphorane is used as Wittig reagent. It is also used as Pharmaceutical Intermediates. It is employed as raw material in organic Synthesis, Agrochemicals.

Bemerkungen

Air Sensitive. Store at -20°C. Incompatible with strong oxidizing agents.

Literaturverweise

Kenji Kumazawa; Yoshiyuki Wada and Hideki Masuda. Characterization of Epoxydecenal Isomers as Potent Odorants in Black Tea (Dimbula) Infusion.J. Agric. Food Chem. 2006, 54 (13), 4795-4801.

Zh. A. Krasnaya; S. A. Burova; V. S. Bogdanov; Yu. V. Smirnova. Synthesis of δ-hetaryl-α,α-dicarbonylalkadienes and a study of their isomerization.Chemistry of Heterocyclic Compounds. 1997, 33 410-422.

Stable ylide, which undergoes Wittig olefination with aldehydes, but not usually with ketones, to give enals: J. Chem. Soc., 1266 (1961); Angew. Chem. Int. Ed., 14, 486 (1975); Tetrahedron Lett., 3071 (1977). See Appendix 1. Reaction with aldehydes generally gives the thermodynamically more stable (E)-enal. Thus glyoxal gives trans,trans-muconic dialdehyde [(E),(E)-2,4-hexadienal]: Chem. Ber., 107, 710 (1974). The following sequence leads to (Z)-enals: Chem. Ber., 115, 161 (1982):

Wittig reaction followed by reduction with DIBAL-H has been used as a route to allylic alcohols. See, e.g.: J. Org. Chem., 47, 1373 (1982).

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H315-H319-H335

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

Sicherheitshinweise: 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.

Weitere Referenzen

Beilstein
523797
Harmonized Tariff Code
2931.39
TSCA
No

Empfohlen

Kürzlich angesehen

Chemikalien

Life science

Metalle und Stoffe

Katalysatoren

Forschungs- und Laborbedarf