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1560-54-9 - Allyltriphenylphosphonium bromide, 99% - A14490 - Alfa Aesar

A14490 Allyltriphenylphosphonium bromide, 99%

CAS-Nummer
1560-54-9
Synonyme

Größe Preis ($) Menge Verfügbarkeit
50g 45,99
250g 152,00
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Allyltriphenylphosphonium bromide, 99%

MDL
MFCD00011808
EINECS
216-332-6

Chemische Eigenschaften

Formel
C21H20BrP
Molmasse
383.27
Schmelzpunkt
222-225°
Sensitivität
Hygroscopic

Literaturverweise

Wittig reaction (see Appendix 1) with aldehydes, using K2CO3 in toluene, gives dienes: Synth. Commun., 22, 1421 (1992). The derived phosphorane also reacts with ß-chloroacrylates to give conjugated phosphoranes, convertible to trienes: Tetrahedron Lett., 1359 (1975):

/n

Michael addition of the phosphorane to ɑß-unsaturated ketones, followed by intramolecular Wittig reaction, gives cyclohexa-1,3-dienes: Tetrahedron Lett., 4425 (1973). Further lithiation of the phosphorane in the presence of TMEDA, followed by reaction of the ylide anion with an aldehyde, provides a route to (E,E)-ß-hydroxy-1,3-dienes: Tetrahedron Lett., 32, 4353 (1991).

/n

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H315-H319-H335

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

Sicherheitshinweise: P261-P280-P305+P351+P338-P304+P340-P362-P312-P321-P405-P403+P233-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/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. Take off contaminated clothing and wash before reuse. Call a POISON CENTER or doctor/physician if you feel unwell. Specific treatment (see label). Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.

Weitere Referenzen

Beilstein
3579053
Harmonized Tariff Code
2931.90
TSCA
No
RTECS
TA1843000

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