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  2. List of computer-assisted organic synthesis software - Wikipedia

    en.wikipedia.org/wiki/List_of_computer-assisted...

    Computer-assisted organic synthesis software is a type of application software used in organic chemistry in tandem with computational chemistry to help facilitate the tasks of designing, predicting, and producing chemical reactions. CAOS aims to identify a series of chemical reactions which, from a starting compound, can produce a desired molecule.

  3. Le Chatelier's principle - Wikipedia

    en.wikipedia.org/wiki/Le_Chatelier's_principle

    Le Chatelier–Braun principle analyzes the qualitative behaviour of a thermodynamic system when a particular one of its externally controlled state variables, say , changes by an amount , the 'driving change', causing a change , the 'response of prime interest', in its conjugate state variable , all other externally controlled state variables remaining constant.

  4. Robinson annulation - Wikipedia

    en.wikipedia.org/wiki/Robinson_annulation

    The Wichterle reaction is a variant of the Robinson annulation that replaces methyl vinyl ketone with 1,3-dichloro-cis-2-butene. This gives an example of using a different Michael acceptor from the typical α,β-unsaturated ketone. The 1,3-dichloro-cis-2-butene is employed to avoid undesirable polymerization or condensation during the Michael ...

  5. Retrosynthetic analysis - Wikipedia

    en.wikipedia.org/wiki/Retrosynthetic_analysis

    Retrosynthetic analysis was used as early as 1917 in Robinson's Tropinone total synthesis. [1] Important conceptual work on retrosynthetic analysis was published by George Vladutz in 1963 . [ 2 ] [ 3 ] E.J. Corey formalized and popularized the concept from 1967 onwards in his article General methods for the construction of complex molecules and ...

  6. Cadogan–Sundberg indole synthesis - Wikipedia

    en.wikipedia.org/wiki/Cadogan–Sundberg_indole...

    The Cadogan–Sundberg indole synthesis, or simply Cadogan indole synthesis, is a name reaction in organic chemistry that allows for the generation of indoles from o-nitrostyrenes with the use of trialkyl phosphites, such as triethyl phosphite.

  7. Debus–Radziszewski imidazole synthesis - Wikipedia

    en.wikipedia.org/wiki/Debus–Radziszewski...

    The Debus–Radziszewski imidazole synthesis is a multi-component reaction used for the synthesis of imidazoles from a 1,2-dicarbonyl, an aldehyde, and ammonia or a primary amine. The method is used commercially to produce several imidazoles. [1] The process is an example of a multicomponent reaction. The reaction can be viewed as occurring in ...

  8. Polyhedral skeletal electron pair theory - Wikipedia

    en.wikipedia.org/wiki/Polyhedral_skeletal...

    To predict the structure of an arachno cluster, the closo polyhedron with n + 2 vertices is used as the starting point, and the n + 1 vertex nido complex is generated by following the rule above; a second vertex adjacent to the first is removed if the cluster is composed of mostly small atoms, a second vertex not adjacent to the first is ...

  9. Biosynthesis - Wikipedia

    en.wikipedia.org/wiki/Biosynthesis

    Biosynthesis occurs due to a series of chemical reactions. For these reactions to take place, the following elements are necessary: [1] Precursor compounds: these compounds are the starting molecules or substrates in a reaction. These may also be viewed as the reactants in a given chemical process.