Related Experiment Video
Updated: May 19, 2026

Preparation of Enantiopure Non-Activated Aziridines and Synthesis of Biemamide B, D, and epiallo-Isomuscarine
Published on: June 13, 2022
(E)-N-Ethyl-2-[(E)-3-(hy-droxy-imino)-butan-2-yl-idene]hydrazinecarbothio-amide
Abstract:
In the crystal structure of the title compound, C(7)H(14)N(4)OS, mol-ecules are linked through N-H⋯S and O-H⋯N hydrogen bonds and C-H⋯S interactions, forming chains propagating along [21-1].
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Aldehydes and Ketones with Amines: Enamine Formation Mechanism
Aldehydes and Ketones with Amines: Imine and Enamine Formation Overview
Preparation of Amides
The DCC-promoted synthesis of amides begins with the protonation of DCC by carboxylic acid. The protonation makes it a better acceptor. Next, the addition of carboxylate to the protonated carbodiimide gives a reactive acylating agent.
Subsequently, the amine acts as a nucleophile that attacks the acylating agent to form a tetrahedral intermediate. In the...
Nomenclature of Carboxylic Acid Derivatives: Amides and Nitriles
The IUPAC and common names of amides are derived from the parent carboxylic acid, by replacing the suffix “oic acid” and “ic acid,” respectively, with “amide.” In the following example, the IUPAC name ethanamide is derived from ethanoic acid, and the common name, acetamide, is obtained from acetic acid.
Carboxylic Acids to Methylesters: Alkylation using Diazomethane
Aldehydes and Ketones with Amines: Imine Formation Mechanism
Imines are formed under mildly acidic conditions. A pH of 4.5 is ideal for the reaction.
If the pH is low or the solution is too acidic, the reaction slows down in the...