We have seen that in the Diels-Alder reaction, the electrons flow in a cyclic, concerted manner. Therefore, the Diels-Alder reaction is classified as a pericyclic reaction, a class of reactions that proceed through a cyclic transition state with no intermediates. … Read more
The Favorskii rearrangement is a base-promoted skeletal rearrangement of α-halo ketones possessing at least one α-hydrogen. Treatment with base in the presence of a nucleophile (such as alcohols, amines, or water) results in a rearrangement via a cyclopropanone intermediate, ultimately … Read more
Norbornane is a bicyclic compound (bicyclo[2.2.1]heptane) with a rigid, saturated framework. Norbornene is its corresponding alkene, containing a double bond that makes it reactive toward typical electrophilic addition reactions. Norbornanone is a ketone derivative, where the carbonyl group undergoes nucleophilic … Read more
Ketamine is a dissociative anesthetic widely used in anesthesia and, more recently, in the treatment of depression. It belongs to a class of compounds characterized by an arylcyclohexanone framework, consisting of a substituted phenyl ring attached to a cyclohexanone ring … Read more
We have seen that carbocation rearrangements may lead to unexpected products in SN1 nucleophilic substitution reactions. For example, when the following alkyl halide is reacted with water, the major product of the reaction is formed via a hydride shift, which … Read more
Ketones can be converted to esters through the Baeyer–Villiger oxidation, where a ketone reacts with a peracid (like mCPBA) to insert an oxygen atom next to the carbonyl, forming an ester. Notice that the more substituted alkyl group of … Read more
This content is for registered users only. Click here to Register! By joining Chemistry Steps, you will gain instant access to the answers and solutions for all the Practice Problems, including over 40 hours of problem-solving videos, Multiple-Choice Quizzes, Puzzles, Reaction … Read more
This content is for registered users only. Click here to Register! By joining Chemistry Steps, you will gain instant access to the answers and solutions for all the Practice Problems, including over 40 hours of problem-solving videos, Multiple-Choice Quizzes, Puzzles, Reaction … Read more
This content is for registered users only. Click here to Register! By joining Chemistry Steps, you will gain instant access to the answers and solutions for all the Practice Problems, including over 40 hours of problem-solving videos, Multiple-Choice Quizzes, Puzzles, Reaction … Read more
The Beckmann rearrangement is a reaction in which a ketone is first converted to an oxime, which, under acidic or Lewis acidic conditions, rearranges into an amide. This reaction is closely related to the Hofmann, Schmidt, and Curtius rearrangements, as … Read more
