Pohlman Matthias, Kazmaier Uli
Universität des Saarlandes, Institut für Organische Chemie, Im Stadtwald, Geb. 23.2, D-66123 Saarbrücken, Germany.
Org Lett. 2003 Jul 24;5(15):2631-3. doi: 10.1021/ol034777j.
[reaction: see text] Zn-chelated glycine ester enolates are highly efficient nucleophiles for the synthesis of trans-methoxycarbonylcyclopropyl- and cyclobutylglycines by domino sequences of Michael additions and subsequent ring closures. They react to give the anti isomers with high yields and excellent diastereoselectivities.
