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L00956 1,2-Vinylenebis(triphenylphosphonium bromide) monohydrate, 98%

CAS-Nummer
54770-27-3
Synonyme

Stock No. Größe Preis ($) Menge Verfügbarkeit
L00956-09 10g 36,70
L00956-18 50g 142,00
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1,2-Vinylenebis(triphenylphosphonium bromide) monohydrate, 98%

MDL
MFCD00040548
EINECS
259-334-2

Chemische Eigenschaften

Formel
C38H32Br2P2•H2O
Molmasse
728.45 (710.44anhy)
Schmelzpunkt
ca 236-250°
Storage & Sensitivity
Hygroscopic. Ambient temperatures.

Literaturverweise

Conjugate addition of alcohols in the presence of triethylamine, followed by elimination and removal of the second phosphonium salt by base-induced cleavage, leads to vinyl ethers: Synthesis, 736 (1975). Similarly, other nucleophiles (e.g. phenols or thiols) can be used to replace one of the phosphonium groups by addition-elimination: Bull. Soc. Chim. Fr., 1421 (1974). With bifunctional nucleophiles, cyclization can occur to give an intermediate for the formylolefination of aldehydes by the Wittig reaction: Synthesis, 826 (1978):

/n

/n

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
3583793
Harmonized Tariff Code
2931.39
TSCA
No

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