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The structure of the acetoxy group blue. In organic chemistry, the acetoxy group (abbr. AcO or OAc; IUPAC name: acetyloxy [1]), is a functional group with the formula −OCOCH 3 and the structure −O−C(=O)−CH 3. As the -oxy suffix implies, it differs from the acetyl group (−C(=O)−CH 3) by the presence of an additional oxygen atom.
The technique was introduced in the field of peptide synthesis by Robert Bruce Merrifield in 1977. [111] For peptide synthesis via automated machine, the orthogonality of the Fmoc group (basic cleavage), the tert‑butyl group (acidic cleavage) and diverse protecting groups for functional groups on the amino acid side-chains are used. [112]
Nos. 280 and 281 show the cremation of corpses in a fire pit, shot through the black frame of the gas chamber's doorway or window. No. 282 shows a group of naked women just before they enter the gas chamber. No. 283 is an image of trees, the result of the photographer aiming too high. [7]
Bikini waxing is the removal of pubic hair using a special wax, which can be hot or cold, that adheres to hairs and pulls them out when the wax is removed quickly from the skin, usually with a cloth strip. While the practice is mainly associated with women, male waxing has become a more common practice to remove men's pubic hair. [1]
It introduces an acetyl group into a chemical compound. Such compounds are termed acetate esters or simply acetates. Deacetylation is the opposite reaction, the removal of an acetyl group from a chemical compound.
One technique for reducing the clitoral hood is the bilateral excision (cutting) of the prepuce tissues covering the clitoral glans, with especial attention to maintaining the glans in the midline. [6] Another technique cuts away (excises) the redundant folds of clitoral prepuce tissue, with incisions parallel to the long axis of the clitoris. [7]
In IUPAC nomenclature, an acetyl group is called an ethanoyl group. An acetyl group contains a methyl group ( −CH 3 ) that is single-bonded to a carbonyl ( C=O ), making it an acyl group . The carbonyl center of an acyl radical has one non-bonded electron with which it forms a chemical bond to the remainder (denoted with the letter R ) of the ...
This technique may be employed when the complete removal of the dye takes precedence. Destructive stripping is commonly used where the fabric is to be completely re-dyed. In case of destructive stripping, for example, dyes with an azo group (N=N-) can be chemically reduced to an amine molecule that is almost colorless by using chemical reducing ...