Search results
Results from the WOW.Com Content Network
Tosyl group (blue) with a generic "R" group attached Tosylate group with a generic "R" group attached. Note the extra oxygen, compared to plain tosyl. In organic chemistry, a toluenesulfonyl group (tosyl group, abbreviated Ts or Tos [nb 1]) is a univalent functional group with the chemical formula −SO 2 −C 6 H 4 −CH 3.
Tosylamide/formaldehyde resin (TSFR) is a polymeric resin used as a plasticizer and secondary film-forming agent in nail polishes. While it was still in use as of 2023, [update] its use has been diminishing in favor of hypoallergenic alternatives, due to the prevalence of reactions causing allergic contact dermatitis of the eyelids , face, and ...
Mitomycin C, an aziridine, is used as a chemotherapeutic agent by virtue of its antitumour activity. [1]In organic chemistry, aziridines are organic compounds containing the aziridine functional group (chemical structure (R−) 4 C 2 N−R), a three-membered heterocycle with one amine (>NR) and two methylene bridges (>CR 2).
Polished nails with nail art Fingernails before, during, and after application of red nail polish A woman's toes with dark nail polish. Nail polish (also known as nail varnish in British English or nail enamel) is a lacquer that can be applied to the human fingernails or toenails to decorate and protect the nail plates.
As typical for Sulfonyl halides, TsCl converts alcohols (abbreviated ROH) into the corresponding toluenesulfonate esters, or tosyl derivatives ("tosylates"): . CH 3 C 6 H 4 SO 2 Cl + ROH → CH 3 C 6 H 4 SO 2 OR + HCl
The reaction's directionality is controlled by the stereochemistry of the hydrazone, with deprotonation occurring cis to the tosylamide group. This is due to coordination by the nitrogen atom. [7] Intermediate explaining directionality of the Shapiro reaction
Two common modes of Lewis acid catalysis in reactions with polar mechanisms. In reactions with polar mechanisms, Lewis acid catalysis often involves binding of the catalyst to Lewis basic heteroatoms and withdrawing electron density, which in turn facilitates heterolytic bond cleavage (in the case of Friedel-Crafts reaction) or directly activates the substrate toward nucleophilic attack (in ...
In organic chemistry, an ethyl group (abbr. Et) is an alkyl substituent with the formula −CH 2 CH 3, derived from ethane (C 2 H 6). Ethyl is used in the International Union of Pure and Applied Chemistry 's nomenclature of organic chemistry for a saturated two-carbon moiety in a molecule, while the prefix " eth- " is used to indicate the ...