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  2. Combinatorial chemistry - Wikipedia

    en.wikipedia.org/wiki/Combinatorial_chemistry

    Combinatorial chemistry comprises chemical synthetic methods that make it possible to prepare a large number (tens to thousands or even millions) of compounds in a single process. These compound libraries can be made as mixtures, sets of individual compounds or chemical structures generated by computer software. [ 1 ]

  3. Chemical synthesis - Wikipedia

    en.wikipedia.org/wiki/Chemical_synthesis

    This requires mixing the compounds in a reaction vessel, such as a chemical reactor or a simple round-bottom flask. Many reactions require some form of processing ("work-up") or purification procedure to isolate the final product. [1] The amount produced by chemical synthesis is known as the reaction yield.

  4. Ugi reaction - Wikipedia

    en.wikipedia.org/wiki/Ugi_reaction

    The Ugi reaction has been applied in combination with an intramolecular Diels-Alder reaction [16] in an extended multistep reaction. A reaction in its own right is the Ugi–Smiles reaction with the carboxylic acid component replaced by a phenol. In this reaction the Mumm rearrangement in the final step is replaced by the Smiles rearrangement. [17]

  5. Comproportionation - Wikipedia

    en.wikipedia.org/wiki/Comproportionation

    Comproportionation or symproportionation is a chemical reaction where two reactants containing the same element but with different oxidation numbers, form a compound having an intermediate oxidation number. It is the opposite of disproportionation. [1]

  6. Cross-coupling reaction - Wikipedia

    en.wikipedia.org/wiki/Cross-coupling_reaction

    In organic chemistry, a cross-coupling reaction is a reaction where two different fragments are joined. Cross-couplings are a subset of the more general coupling reactions. Often cross-coupling reactions require metal catalysts. One important reaction type is this:

  7. Nef reaction - Wikipedia

    en.wikipedia.org/wiki/Nef_reaction

    Nef reaction in combination with Michael addition. In carbohydrate chemistry, they are a chain-extension method for aldoses, as in the isotope labeling of C 14-D‑mannose and C 14-D‑glucose from D‑arabinose and C 14 ‑nitromethane (the first step here is a Henry reaction): The Nef reaction: chain extension. The opposite reaction is the ...

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