Tetrahedron Letters p. 5545 - 5546 (1992)
Update date:2022-08-05
Topics:
Eguchi
Aoyama
Kakinuma
Remarkable reactivity and reversal of stereoselectivity in the Wittig-type olefinations of α-fluorinated alkyl aryl ketones were described. Stabilized Wittig and Horner-Emmons reagents with these ketones selectively afforded the olefinic products in the stereochemically opposite fashion to the non-fluorinated ketone cases. The Still's reagent further reversed the stereochemical outcome with the fluorinated ketones.
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