Tetrahedron Letters p. 5689 - 5692 (1998)
Update date:2022-08-02
Topics:
Takeuchi, Kumiko
Kohn, Todd J.
A Wittig reaction of amide substituted phenyl 3-pyridyl ketones with 'nonstabilized' phosphorus ylides which contain a carboxyl terminus preferentially forms (E)-olefin. The preference for this stereoselectivity stems from either hydrogen bonding or salt-bridge formation between the amide group and the carboxyl terminus during the oxaphosphetane intermediate formation.
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Doi:10.1016/S0040-4039(00)97511-7
(1990)Doi:10.1016/j.bmcl.2004.04.036
(2004)Doi:10.1021/jm00303a005
(1969)Doi:10.1002/(SICI)1099-0690(199809)1998:9<1949::AID-EJOC1949>3.0.CO;2-8
(1998)Doi:10.1021/ja00800a045
(1973)Doi:10.1021/jm00269a014
(1973)
