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Cycloadditions of chiral anthracenes: effect of the trifluoromethyl group

โœ Scribed by Matthew S. Corbett; Xiang Liu; Amitav Sanyal; John K. Snyder


Book ID
104252837
Publisher
Elsevier Science
Year
2003
Tongue
French
Weight
177 KB
Volume
44
Category
Article
ISSN
0040-4039

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โœฆ Synopsis


Chiral anthracene template, 10-methyl-9-(1-methoxy-2,2,2-trifluoroethyl)anthracene undergoes highly diastereoselective cycloadditions with maleic anhydride and 5-acetoxy-2(5H)-furanone. Subsequent regioselective and stereoselective manipulations demonstrate the synthetic utility in conversions to enantioenriched butenolides, and elucidate the origin of diastereoselection.


๐Ÿ“œ SIMILAR VOLUMES


The Electrical Effect of the Trifluorome
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The effect of the trifluoromethyl group
โœ Xavier Creary; Anthony F. Sky; M.E. Mehrsheikh-Mohammadi ๐Ÿ“‚ Article ๐Ÿ“… 1988 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 231 KB

The CFsgroup, in conjunction with an electron donor group, can enhance the rate of the methylenecyclopropane rearrangement. This is attributed to captodative radical stabilization of the intermediate biradical.