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A protecting group or protective group is introduced into a molecule by ... Allyl esters — As with allyl ethers, also ... New Jersey, ISBN 0-471-69754 ...
In organic chemistry, an allyl group is a substituent with the structural formula −CH 2 −HC=CH 2. It consists of a methylene bridge (−CH 2 −) attached to a vinyl group (−CH=CH 2). [1] [2] The name is derived from the scientific name for garlic, Allium sativum. In 1844, Theodor Wertheim isolated an allyl derivative from garlic oil and ...
In the second, mild protection scheme, A and dA are protected with isobutyryl [28] or phenoxyacetyl groups (PAC). [29] C and dC bear acetyl protection, [27] and G and dG are protected with 4-isopropylphenoxyacetyl (i-Pr-PAC) [30] or dimethylformamidino (dmf) [31] groups. Mild protecting groups are removed more readily than the standard ...
The excellent functional group compatibility of the Krische allylation combined with the tractability of the allyl acetate pronucleophiles enables the use of allyl donors bearing highly complex nitrogen-rich substituents. [20] insert a caption here. The figure below shows some of the different allyl donors that have been used in the Krische ...
The Tsuji–Trost reaction (also called the Trost allylic alkylation or allylic alkylation) is a palladium-catalysed substitution reaction involving a substrate that contains a leaving group in an allylic position. The palladium catalyst first coordinates with the allyl group and then undergoes oxidative addition, forming the π-allyl
Thermolabile protecting groups; 2,2,2-Trichloroethoxycarbonyl chloride This page was last edited on 15 September 2015, at 12:37 (UTC). ...
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The allyloxycarbonyl (alloc) protecting group is sometimes used to protect an amino group (or carboxylic acid or alcohol group) when an orthogonal deprotection scheme is required. It is also sometimes used when conducting on-resin cyclic peptide formation, where the peptide is linked to the resin by a side-chain functional group.