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Search results for: sharpless epoxidation
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... active ?-siloxy aldehydes are easily available through Sharpless epoxidation of allylic alcohols, followed by ... Highly Regio- and Stereoselective Rearrangement of Epoxides to Aldehydes Catalyzed by High-Valent Metalloporphyrin Complex ...
... are of course easily prepared using a Sharpless asymmetric epoxidation . Treatment of the chloro ... synthesis of the starting materials, ?-chloro epoxides, which are of course easily prepared ...
... 3, the authors took advantage of Sharpless asymmetric epoxidation . To this end, ... acetate 7 was oxidized with SeO2 to the allylic alcohol 8. Epoxidation gave 9 ...
... . DOI: 10.1016/j.tetlet.2011.11.145) Sharpless epoxidation , to prepare 5, with ... /ol202190b) 4 by opening the epoxide 1 to the carbene, which cyclized ...
... with TBAF gave the alkyne 5. Sharpless asymmetric dihydroxylation followed by selective monomesylation delivered ... epoxide 6, that was cyclized, then protected, leading to the bromoalkene 7 ...
... using the usual reagents failed, but Sharpless asymmetric dihydroxylation was successful, providing the ... both 1 and 2. Selective direct epoxidation of 11 using the usual reagents failed ...
... from the simple precursor 30 by sequential Sharpless asymmetric epoxidation and Sharpless asymmetric dihydroxylation ( ... conditions to redirect the cyclization of the epoxide 19 from the expected exo product to ...
... to terminal olefins from prim-alcohols (the Grieco-Sharpless olefination reaction) and to the regioselective ... : CATALYTIC ASYMMETRIC DIHYDROXYLATION Original Syntheses of Epoxides Involving Organoselenium Intermediates. A. Krief ...
... one of the most valuable, is Sharpless asymmetric epoxidation . Karl Anker Jørgensen of ... University, Denmark, devised (J . Am. Chem. Soc. 2005 ...
... The diol stereochemistry was unsurprisingly installed using Sharpless' chemistry - in this case a ... asymmetric epoxidation, followed by opening of the allylic epoxide to install the amine. ...
