... Organic Letters. ... Chem. Soc. 1979, 101, 4236−4244. (b) Frejaville, C.; Jullien, R. Tetrahedron Lett. 1971, 12, 2039−2041. [ACS Full Text ACS Full Text ] There is no corresponding record for this reference. Trimethylsilyl anion: Hwu, JR J. Chem. Soc., Chem. Commun. ...