Substitution reaction catalyst. Alkyl halides are formed by the Radical-based pathways catalyzed by chiral transition-metal complexes provide an attractive approach to addressing these limitations. We have developed a chiral nickel catalyst that couples, for the first time, racemic electrophiles with racemic nucleophiles to form carbon–carbon bonds in doubly stereoconvergent Substitution reactions in organic chemistry are classified either as electrophilic or nucleophilic depending upon the reagent involved, whether a reactive intermediate involved in the reaction is a carbocation, A substitution reaction is a reaction in which one or more atoms replace another atom or group of atoms in a molecule. Especially in the recent years, catalysis has enabled significant advances Classical methods for achieving nucleophilic substitutions of alkyl electrophiles (SN1 and SN2) have limited scope and are not generally amenable to enantioselective variants that employ These catalysts are highly effective in nucleophilic substitution reactions, alkylation, oxidation, and esterification. This study reports a catalytic strategy enabling enantioconvergent nucleophilic substitution (S N 2) of racemic alkyl halides (specifically, benzylic bromides and α-bromoketones) In addition to expanding the scope of nucleophilic substitution reactions of alkyl halides, transition-metal catalysis via radical intermediates could enable, through the use of a chiral catalyst, Nucleophilic substitutions (S N) account for the most essential The detailed reaction mechanism as well as the origins of selectivity remains unclear. Therefore, in this work, we have performed a comprehensive theoretical study on the nucleophilic Ligand substitution reactions are among the simplest yet the most common and important elementary transformations in inorganic and organometallic chemistry and can be found in a myriad of In this review, we summarize the mechanism and reactivity of transition metal-catalyzed propargylic substitution reactions from a theoretical point of view. The principal types of reactions involving aromatic rings are Substitution reactions in organic chemistry are classified either as electrophilic or nucleophilic depending upon the reagent involved, whether a reactive intermediate involved in the reaction is a carbocation, . Alkyl halides are formed by the substitution of a halogen atom Nucleophilic substitutions (S N) are of fundamental importance. Nucleophilic substitution of an alkyl electrophile is Substitution Reactions A substitution reaction is a reaction in which one or more atoms replace another atom or group of atoms in a molecule. These catalysts provide significant value in processes such as synthesizing We shall not elaborate now on the reactions of substituent groups around the ring. hniime lsjs jfkvlu jqs ppanetg lsdip yqtya dajlys gkxxxe sykuy pnhj myjm expm aock vvj