Directing group enhanced carbonylative ring expansions of amino-substituted cyclopropanes: rhodium-catalyzed multicomponent synthesis of N-heterobicyclic …
... Volume: Page: ... envisaged selective metallacycle formation by employing N-protecting groups that can serve a dual role of pre-coordinating the metal catalyst (Scheme 1D).(14) Herein, we ... Rh(cod) 2 ]BF 4 afforded a mixture of alkene products 8a–c (1:7:12); 8b,c ...
[Swenton, John S.; Carpenter, Kenneth; Chen, Ying; Kerns, Michael L.; Morrow, Gary W. Journal of Organic Chemistry, 1993 , vol. 58, # 12 p. 3308 - 3316]
