Nasipuri

Edwin M Kaiser William G Kenyon R A Klein C Konig A Paul Krapcho Stephen J Kuhn William C Kuryla Peter A Leermakers Robert L Letsinger Guy S Lougheed B J Magerlein R J L Martin John G Moefatt D Nasipuri George A Olah D E Pearson R J Petersen G Ploss J Posner A Rieche... 

Evans, D.A. Nelson, S.G. Gagne, M.R. Mud, A.R. J. Am. Chem. Soc., 1993,115,9800. It has been that shown in some cases reduction with metal alkoxides, including aluminum isopropoxide, involves free-radical intermediates (SET mechanism) Screttas, C.G. Cazianis, C.T. Tetrahedron, 1978, 34, 933 Nasipuri, D. Gupta, M.D. Baneijee, S. Tetrahedron Lett., 1984, 25, 5551 Ashby, E.C. Argyropoulos, J.N. Tetrahedron Lett.,... 

Horeau and co-workers (130) found that an ether solution containing four molar equivalents of (+ )-camphor added to one molar equivalent of LAH, followed by addition of A1C13, reduced 2-butanone or pinacolone. The reagent involved is presumably the same as that prepared by Eliel and Nasipuri (111), although the reaction leading to the formation of 111 is different (eq. [29]). The... 

Nasipuri and co-workers have extensively investigated complex 111 as a chiral reducing agent (131-138). The results of these investigations are summarized... 

In order to explain this trend, Nasipuri and co-workers (135) adopted the essentially acyclic models 115 and 116 leading to the (R)- and (S)-carbinols respectively (Scheme 16). Models 115 and 116 are Newman-type formulas viewed along the C—H—C axis. The transition states are assumed to be reactant-like and involve loosely bound opposite dipoles O8- and M8+. 

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