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  2. Chemical synthesis - Wikipedia

    en.wikipedia.org/wiki/Chemical_synthesis

    Chemical synthesis using green chemistry promotes the design of new synthetic methods and apparatus that simplify operations and seeks environmentally benign solvents. Key principles include atom economy , which aims to incorporate all reactant atoms into the final product, and the reduction of waste and inefficiencies in chemical processes.

  3. Ritter reaction - Wikipedia

    en.wikipedia.org/wiki/Ritter_reaction

    A large scale application of the Ritter reaction is in the synthesis of tert-octylamine, by way of the intermediate formamide.This process was originally described by Ritter in 1948, [11] and an estimated 10,000 tons/y (year: 2000) of this and related lipophilic amines are prepared in this way. [12]

  4. Synthon - Wikipedia

    en.wikipedia.org/wiki/Synthon

    The synthesis of phenylacetic acid determined by retrosynthetic analysis is thus: Ph−CH 2 −Br + Na + [C≡N] − → Ph−CH 2 −C≡N + NaBr Ph−CH 2 −C≡N + 2 H 2 O → Ph−CH 2 −C(=O)−OH + NH 3. where Ph stands for phenyl. C2 synthons - acetylene, acetaldehyde-C 2 H 4 OH synthon - ethylene oxide; carbocation synthons - alkyl ...

  5. Williamson ether synthesis - Wikipedia

    en.wikipedia.org/wiki/Williamson_ether_synthesis

    The Williamson ether synthesis is an organic reaction, forming an ether from an organohalide and a deprotonated alcohol . This reaction was developed by Alexander Williamson in 1850. [ 2 ] Typically it involves the reaction of an alkoxide ion with a primary alkyl halide via an S N 2 reaction .

  6. Divergent synthesis - Wikipedia

    en.wikipedia.org/wiki/Divergent_synthesis

    In chemistry a divergent synthesis is a strategy with the aim to improve the efficiency of chemical synthesis. It is often an alternative to convergent synthesis or linear synthesis. In one strategy divergent synthesis aims to generate a library of chemical compounds by first reacting a molecule with a set of reactants.

  7. Henry reaction - Wikipedia

    en.wikipedia.org/wiki/Henry_reaction

    The first example of an enantioselective nitroaldol reaction was reported in 1992 using Shibasaki catalysts. [11] One of the most frequently employed methods for inducing enantio- or diastereoselectivity in the Henry reaction is the use of chiral metal catalysts, in which the nitro group and carbonyl oxygen coordinate to a metal that is bound ...

  8. Stetter reaction - Wikipedia

    en.wikipedia.org/wiki/Stetter_reaction

    The Stetter reaction is a reaction used in organic chemistry to form carbon-carbon bonds through a 1,4-addition reaction utilizing a nucleophilic catalyst. [1] While the related 1,2-addition reaction, the benzoin condensation, was known since the 1830s, the Stetter reaction was not reported until 1973 by Dr. Hermann Stetter. [2]

  9. Robinson–Gabriel synthesis - Wikipedia

    en.wikipedia.org/wiki/Robinson–Gabriel_synthesis

    The Robinson–Gabriel synthesis is an organic reaction in which a 2-acylamino-ketone reacts intramolecularly followed by a dehydration to give an oxazole.A cyclodehydrating agent is needed to catalyze the reaction [1] [2] [3] It is named after Sir Robert Robinson and Siegmund Gabriel who described the reaction in 1909 and 1910, respectively.

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