enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Kharasch–Sosnovsky reaction - Wikipedia

    en.wikipedia.org/wiki/Kharasch–Sosnovsky_reaction

    The Kharasch–Sosnovsky reaction is a method that involves using a copper or cobalt salt as a catalyst to oxidize olefins at the allylic position, subsequently condensing a peroxy ester (e.g. tert-Butyl peroxybenzoate) or a peroxide resulting in the formation of allylic benzoates or alcohols via radical oxidation. [1]

  3. Babler oxidation - Wikipedia

    en.wikipedia.org/wiki/Babler_oxidation

    Babler-Dauben oxidation of cyclic tertiary allylic alcohols. The reaction produces the desired enone product to high yield (typically >75%), is operationally simple and does not require air-free techniques or heating. [1] It suffers, however, from the very high toxicity and environmental hazard posed by the hexavalent chromium PCC oxidising ...

  4. Oxidation with chromium(VI) complexes - Wikipedia

    en.wikipedia.org/wiki/Oxidation_with_chromium(VI...

    These reagents, as well as other, more exotic adducts of nitrogen heterocycles with chromium(VI), facilitate a number of oxidative transformations of organic compounds, including cyclization to form tetrahydrofuran derivatives and allylic transposition to afford enones from allylic alcohols. The above reagents represent improvements over the ...

  5. Riley oxidation - Wikipedia

    en.wikipedia.org/wiki/Riley_oxidation

    The Riley Oxidation is amenable to a variety of carbonyl and olefinic systems with a high degree of regiocontrol based on the substitution pattern of the given system. Ketones with two available α-methylene positions react more quickly at the least hindered position.: [1] Allylic oxidation can be predicted by the substitution pattern on the ...

  6. Allyl group - Wikipedia

    en.wikipedia.org/wiki/Allyl_group

    A site adjacent to the unsaturated carbon atom is called the allylic position or allylic site. A group attached at this site is sometimes described as allylic. Thus, CH 2 =CHCH 2 OH "has an allylic hydroxyl group". Allylic C−H bonds are about 15% weaker than the C−H bonds in ordinary sp 3 carbon centers and are thus more reactive.

  7. Selenium dioxide - Wikipedia

    en.wikipedia.org/wiki/Selenium_dioxide

    This type of reaction is called a Riley oxidation. It is also renowned as a reagent for allylic oxidation, [11] a reaction that entails the following conversion Allylic oxidation. This can be described more generally as; R 2 C=CR'-CHR" 2 + [O] → R 2 C=CR'-C(OH)R" 2. where R, R', R" may be alkyl or aryl substituents.

  8. Allyl alcohol - Wikipedia

    en.wikipedia.org/wiki/Allyl_alcohol

    Allyl alcohols in general are prepared by allylic oxidation of allyl compounds, using selenium dioxide or organic peroxides. Other methods include carbon-carbon bond-forming reactions such as the Prins reaction, the Morita-Baylis-Hillman reaction, or a variant of the Ramberg-Bäcklund reaction. Hydrogenation of enones is another route.

  9. Corey–Kim oxidation - Wikipedia

    en.wikipedia.org/wiki/Corey–Kim_oxidation

    Rather, it is formed by oxidation of dimethyl sulfide with an oxidant (NCS). The reaction mechanism of Corey–Kim oxidation. Under Corey–Kim conditions allylic and benzylic alcohols have a tendency to evolve to the corresponding allyl and benzyl chlorides unless the alcohol activation is very quickly followed by addition of triethylamine. In ...