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Well-known reactions and reagents in organic chemistry include 0-9. 1,2-Wittig rearrangement ...
Following rearrangement and loss of water, a second equivalent of water attacks the alpha position. Red amorphous selenium is liberated in the final step to give the 1,2-dicarbonyl product. [8] [9]: 4331 Allylic oxidation using selenium-dioxide proceeds via an ene reaction at the electrophilic selenium center.
Organic chemistry has a strong tradition of naming a specific reaction to its inventor or inventors and a long list of so-called named reactions exists, conservatively estimated at 1000. A very old named reaction is the Claisen rearrangement (1912) and a recent named reaction is the Bingel reaction (1993).
Condensation reactions (2 C, 38 P) Coupling reactions (1 C, 83 P) D. Degradation reactions (15 P) E. Esterification reactions (4 P) F. Free radical reactions (25 P)
Books have been published devoted exclusively to name reactions; [2] [3] [4] the Merck Index, a chemical encyclopedia, also includes an appendix on name reactions. As organic chemistry developed during the 20th century, chemists started associating synthetically useful reactions with the names of their discoverers or developers.
The following outline is provided as an overview of and topical guide to organic chemistry: . Organic chemistry is the scientific study of the structure, properties, composition, reactions, and preparation (by synthesis or by other means) of carbon-based compounds, hydrocarbons, and their derivatives.
Most often, each step in a synthesis is a separate reaction taking place to modify the starting materials. For more complex molecules, a convergent synthetic approach may be better suited. This type of reaction scheme involves the individual preparations of several key intermediates, which are then combined to form the desired product. [4]
Quinones undergo addition reaction to form 1,4-addition products. [10] An example of 1,4-addition reaction is the addition of hydrogen chloride to form chlorohydroquinone: 1,4-addition reaction of quinone with hydrogen chloride to produce chlorohydroquinone. Quinones can undergo Diels–Alder reactions. [10]