Grignard Reagent: A Grignard reagent is an organometallic compound with the general formula R-Mg-X, where R is an alkyl or aryl group and X is a halide. Grignard reagents are highly reactive and are used in organic synthesis to form carbon-carbon bonds.
Carbonyl Compounds: Carbonyl compounds are organic compounds that contain a carbonyl group (C=O), such as aldehydes, ketones, carboxylic acids, and their derivatives. These compounds are important intermediates in organic synthesis.
Nucleophilic Addition: Nucleophilic addition is a type of organic reaction where a nucleophile adds to the electrophilic carbon of a carbonyl group, forming a tetrahedral intermediate that then collapses to give the addition product.