The document discusses various nitrogen substitution and addition reactions including the Mannich reaction where nucleophilic nitrogen adds to saturated or unsaturated carbons. It specifically mentions the reaction of primary amines with aldehydes and ketones to form imines and the formation of amino acids through reactions like the Hell-Volhard Zelensky reaction, Gabriel procedure, nitrosation, and Strecker method.

1. Mannich Reaction

8. Nucleophilic Nitrogen Electrophilic Nitrogen

10. Addition of Nucleophilic Nitrogen to Unsaturated Carbon Reactions with Aldehydes and Ketones

12. Reactions of Electrophilic Nitrogen

13. Nitration

14. Synthesis of Amino Acids Via Hell-Volhard Zelensky Reaction

15. Via Gabriel Procedure Via Nitrosation

16. Via Strecker Method