Isopropenylmagnesium Bromide Solution For Chemical Raw Materials CAS 13291-18-4

What is Isopropenylmagnesium bromide solution for Chemical Raw Materials CAS 13291-18-4 ?

Isopropenylmagnesium Bromide (CAS {{0}}) Also known as bromo(prop-1-en-2-yl)magnesium, this organomagnesium compound has a molecular formula of C₃H₅BrMg and a molecular weight of 145.28 g/mol. Belonging to the alkenyl Grignard reagent class, it is typically supplied as a 0.5 M or 1.0 M solution in tetrahydrofuran (THF) or 2-methyltetrahydrofuran (2-MeTHF).
Isopropenylmagnesium Bromide appears as a white-to-orange crystalline powder in its pure form, while solutions range from orange to dark gray. It has a density of 0.927–0.935 g/mL (25 degree , THF solution), a boiling point of 67 degree (azeotropic with THF), and a flash point of 2 degree , making it highly flammable. The compound is soluble in aprotic solvents like THF and diethyl ether but reacts violently with water or alcohols, releasing flammable propene gas.

Isopropenylmagnesium bromide solution for Chemical Raw Materials CAS 13291-18-4

Carbonyl Addition: Reacts with aldehydes, ketones, and esters to form allyl alcohol derivatives (e.g., producing 2-methyl-3-butene-2-ol with acetone).
Metal-Catalyzed Cross-Coupling: Undergoes palladium- or nickel-catalyzed coupling with alkyl/aryl halides to introduce isopropenyl groups in synthesizing drug intermediates or complex olefins.
Regioselective Ring Opening: Used in asymmetric synthesis, such as the total synthesis of natural products like (+)-desepoxyasperdiol.

Hazards: Highly flammable (H225), reacts violently with water (H260), may cause skin burns (H314) and respiratory irritation (H335).

Storage conditions: Usually stored in sealed bottled solution at 2–8 degree , avoid high temperature and light.

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