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Search results for: epoxidation

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... Isolated alkenes also work well. MCPBA is the reagent most commonly used for alkene epoxidation. Payne oxidation (H 2 O 2/ CH 3 CN) is ...
URL: https://www.organic-chemistry.org/Highlights/2008/24March.shtm
... 3. The aldehyde 3 was readily decarbonylated by irradiation in dioxane. Face-selective Al-mediated epoxidation of the derived homoallylic alcohol proceeded with 10:1 selectivity, and subsequent ...
URL: https://www.organic-chemistry.org/Highlights/2010/04October.shtm
... . Soc. 2010, 132, 7878.) catalyst systems for the enantioselective epoxidation of a Z-homoallylic alcohol 1. Michael J. Krische of the University of ...
URL: https://www.organic-chemistry.org/Highlights/2011/14February.shtm
... 2 gave the enol triflate 9, that smoothly carbonylated to the lactone 10. Epoxidation with alkaline hydrogen peroxide followed by oxidation gave the carboxylic acid, that spontaneously ...
URL: https://www.organic-chemistry.org/Highlights/2012/06February.shtm
... Tohoku University paired (Tetrahedron Lett. 2012, 53, 705.) Sharpless epoxidation, to prepare 5, with the Stork epoxy nitrile cyclization, leading to ...
URL: https://www.organic-chemistry.org/Highlights/2012/31December.shtm
... of Alcohols and Amines: The Zhu Synthesis of (+ )-Trigonoliimine A The enantioselective epoxidation of a terminal alkene 1 has been a long-sought goal of organic synthesis. ...
URL: https://www.organic-chemistry.org/Highlights/2014/14July.shtm
... 135, 10036.) an easily-scaled protocol for the Mo-catalyzed "on water" epoxidation of an alkene 1, using molecular O 2. Needing to epoxidize the ...
URL: https://www.organic-chemistry.org/Highlights/2014/15September.shtm
... 8. A few steps later, the sidechain stereocenter was set by Sharpless asymmetric epoxidation. Oxidation of 11 gave the aldehyde, that was converted to the alkyne ...
URL: https://www.organic-chemistry.org/Highlights/2015/06April.shtm
... 4270.) that the ketone 9, used catalytically, markedly accelerated the Payne epoxidation of 8 to 10. Note that Helena M. C. Ferraz of ...
URL: https://www.organic-chemistry.org/Highlights/2015/30March.shtm
... point for the preparation of 1 was the chlorination of geraniol (4). Epoxidation gave 5, that was coupled with 6, then rearranged to 7. ...
URL: https://www.organic-chemistry.org/Highlights/2016/02May.shtm
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