B.Pharmacy 3rd Semester Pharmaceutical Organic Chemistry – 2

.Pharmacy 3rd Semester Pharmaceutical Organic Chemistry–II notes cover aromaticity, electrophilic substitution reactions, phenols, ethers, aromatic amines, heterocyclic compounds, and stereochemistry. The syllabus includes reaction mechanisms, orientation effects, synthesis, chemical properties, and pharmaceutical importance of organic compounds. These notes are designed as per PCI syllabus to help pharmacy students build strong conceptual understanding and exam-oriented preparation

Bachelor of Pharmacy
Semester		3rd Semester		Subject		Pharmaceutical Organic Chemistry – 2
Syllabus
Unit 1st	Benzene and its derivatives A. Analytical, synthetic and other evidences in the derivation of structure of benzene, the orbital picture, resonance in benzene, aromatic characters, Huckel’s rule B. Reactions of benzene: nitration, sulphonation, halogenation reactivity, Friedel-Crafts alkylation reactivity, limitations, and Friedel-Crafts acylation. C. Substituents: effect of substituents on reactivity and orientation of monosubstituted benzene compounds towards electrophilic substitution reaction D. Structure and uses of DDT, Saccharin, BHC and Chloramine
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Unit 2nd	Phenols- Acidity of phenols, effect of substituents on acidity, qualitative tests, Structure and uses of phenol, cresols, resorcinol, naphthols Aromatic Amines- Basicity of amines, effect of substituents on basicity, and synthetic uses of aryl diazonium salts Aromatic Acids Acidity, effect of substituents on acidity and important reactions of benzoic acid.
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Unit 3rd	Fats and Oils a. Fatty acid reactions. b. Hydrolysis, Hydrogenation, Saponification and Rancidity of oils, Drying oils. c. Analytical constants– Acid value, Saponification value, Ester value, Iodine value, Acetyl value, Reichert Meissl (RM) value– significance and principle involved in their determination
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Unit 4th	Polynuclear hydrocarbons: a. Synthesis, reactions b. Structure and medicinal uses of Naphthalene, Phenanthrene, Anthracene, Diphenylmethane, Triphenylmethane and their derivatives
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Unit 5th	Cyclo alkanes Stabilities – Baeyer’s strain theory, limitation of Baeyer’s strain theory, Coulson and Moffitt’s modification of Sachse-Mohr’s theory (Theory of strainless rings), reactions of cyclopropane and cyclobutane only
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Pharmaceutical Organic Chemistry–II focuses on the structure, reactions, and pharmaceutical relevance of aromatic and heterocyclic compounds. It covers aromaticity, electrophilic substitution reactions, phenols, ethers, aromatic amines, and stereochemistry. The subject also emphasizes reaction mechanisms, orientation effects, synthesis, and medicinal importance of key organic compounds, providing a strong foundation for understanding drug chemistry and further medicinal chemistry studies.

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