tert-Butylmagnesium chloride

tert-Butylmagnesium chloride is a high-purity grignard-reagent supplied for industrial and specialty chemical applications. Contact our team for specifications, packaging options and lead times.

1. Grignard Reactions

Functions as a carbon nucleophile, reacting with electrophiles such as carbonyl compounds (aldehydes, ketones, esters) to form tertiary alcohols after hydrolysis.

Used to build complex carbon skeletons in pharmaceuticals, agrochemicals, and materials chemistry.

2. Metalation and Halogen–Magnesium Exchange

tert-Butylmagnesium chloride is used in halogen–magnesium exchange reactions, especially with aryl or heteroaryl halides, to generate arylmagnesium reagents for further functionalization.

Often applied in directed ortho-metalation for functionalizing aromatic compounds.

3. Synthesis of Organoboron, Organosilicon, and Organophosphorus Compounds

Used in the preparation of boronic acids, silanes, and phosphines through metal–halogen exchange or addition to electrophilic centers.

4. Deprotonation Reactions

Acts as a strong, non-nucleophilic base for deprotonating weakly acidic substrates, such as heterocycles, enolizable ketones, or active methylene compounds.

5. Initiator in Polymerization

Sometimes used in anionic polymerization of certain monomers due to its strong basicity and reactivity.

1. High Reactivity

The tert-butyl group provides steric hindrance, making the reagent less nucleophilic but an excellent base for selective deprotonation or exchange reactions.

2. Selective Reactivity

Due to its bulky nature, tert-butylmagnesium chloride can be more chemoselective than other Grignard reagents, enabling cleaner reactions with fewer side products.

3. Versatility

Compatible with a wide range of electrophiles and synthetic methods, including transition-metal-catalyzed cross-coupling reactions.

4. Scalability

Suitable for lab-scale and industrial-scale synthesis, especially in fine chemical and pharmaceutical production.

tert-Butylmagnesium chloride (CAS 677-22-5) is a powerful Grignard reagent widely used in carbon–carbon bond formation, metalation, and base-mediated transformations. Its bulky tert-butyl group imparts unique reactivity and selectivity, making it ideal for use in complex organic synthesis, especially where regioselectivity and steric control are important. Its role as a non-nucleophilic base and halogen–magnesium exchange reagent makes it indispensable in the toolkit of synthetic organic chemists.

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