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29263-94-3 - Diethyl 2-bromo-2-methylmalonate, 98% - 2-Bromo-2-methylmalonic acid diethyl ester - L00575 - Alfa Aesar

L00575 Diethyl 2-bromo-2-methylmalonate, 98%

CAS-Nummer
29263-94-3
Synonyme
2-Bromo-2-methylmalonic acid diethyl ester

Größe Preis ($) Menge Verfügbarkeit
25g 46,32
100g 131,02
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Diethyl 2-bromo-2-methylmalonate, 98%

MDL
MFCD00009125
EINECS
249-541-6

Chemische Eigenschaften

Formel
C8H13BrO4
Molmasse
253.10
Siedepunkt
105-106°/5mm
Flammpunkt
>110°(230°F)
Dichte
1.323
Brechungsindex
1.4490

Literaturverweise

Brominating agent, more reproducible than bromine, for ester enolates: Rec. Trav. Chim., 96, 72 (1977).

/n

Reacts with nucleophiles at bromine with displacement of the malonate anion. Thus it has been used to introduce the ɑ-methylacetic acid unit at a remote position, asin the -alkylation of unsaturated ketones, in which the displaced malonate anion reacts with the initially-formed ɑ-bromo ketone. This process has been termed "transfer alkylation": J. Am. Chem. Soc., 94, 1790 (1972):

/n

/n

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H314-H318

Causes severe skin burns and eye damage. Causes serious eye damage.

Sicherheitshinweise: P260-P280-P303+P361+P353-P305+P351+P338-P301+P330+P331-P304+P340-P310-P363-P405-P501a

Do not breathe dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Immediately call a POISON CENTER or doctor/physician. Wash contaminated clothing before reuse. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Weitere Referenzen

Beilstein
1779673
Gefahrenklasse
8
Verpackungsgruppe
II
Harmonized Tariff Code
2917.19
TSCA
No

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