We have seen how aryl ketones are prepared by the Friedel-Crafts acylation when benzene or other aromatic compound derivatives are reacted with acid chlorides in the presence of Lewis acids such as AlCl3. Now, when highly activated benzene … Read more
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
Fentanyl is a potent synthetic opioid widely used for pain management and anesthesia. Structurally, it is a phenylpiperidine derivative, featuring a substituted aniline ring, a piperidine heterocycle, and an amide linkage connecting the key fragments. Its biological activity arises from … Read more
Sertraline is a selective serotonin reuptake inhibitor (SSRI) widely used in the treatment of depression, anxiety disorders, and related conditions. Structurally, it is a substituted tetralin derivative, featuring a fused bicyclic aromatic system, a dichlorinated phenyl ring, and a secondary … Read more
Albuterol is a short-acting β2-adrenergic receptor agonist widely used in the treatment of asthma and other conditions involving bronchospasm. Structurally, it is a substituted phenethylamine derivative, featuring a resorcinol (1,3-dihydroxybenzene) ring, a β-hydroxylated side chain, and a tert-butyl-substituted amine. Its … Read more
Tamoxifen is a selective estrogen receptor modulator (SERM) widely used in the treatment and prevention of estrogen receptor–positive breast cancer. Structurally, it is a triphenylethylene derivative, consisting of a substituted alkene framework connecting three aromatic rings, along with a basic side chain. … Read more
Warfarin is an anticoagulant medication widely used to prevent and treat blood clots, including conditions such as deep vein thrombosis and pulmonary embolism. Chemically, it is a coumarin derivative, featuring a 4-hydroxycoumarin core linked to a substituted side chain. Its … Read more
Hydroxyzine is a first-generation antihistamine widely used in the treatment of anxiety, nausea, and allergic conditions. It belongs to a class of drugs characterized by a piperazine ring connected to a substituted phenyl group and a hydroxyethyl side chain. Hydroxyzine … Read more
Doxepin is a tricyclic antidepressant widely used in the treatment of depression, anxiety disorders, and insomnia. It belongs to a class of drugs characterized by a three-ring system, consisting of two benzene rings fused to a central seven-membered ring, with … Read more
Risperidone is an atypical antipsychotic medication widely used in the treatment of schizophrenia, bipolar disorder, and irritability associated with autism spectrum disorder. It belongs to a class of drugs known as second-generation antipsychotics, which act primarily by modulating dopamine (D₂) … Read more
