On the stereoselective bicyclization of aminodienes catalyzed by chelating diamide complexes of the group 3 metals. A direct comparison of Sc(iii) and Y(iii) bis(amide)s with an application to the synthesis of alkaloid 195F
On the stereoselective bicyclization of aminodienes catalyzed by chelating diamide complexes of the group 3 metals. A direct comparison of Sc(iii) and Y(iii) bis(amide)s with an application to the synthesis of alkaloid 195F
Chelating Diamide Based Rate Enhancement of Intramolecular Alkene Hydroaminations Catalyzed by a Neutral Sc(III) Complex
作者:Joon Young Kim、Tom Livinghouse
DOI:10.1021/ol051574h
日期:2005.9.1
[reaction: see text] Neutral scandium amido complexes are viable catalysts for intramolecular alkenehydroamination. Catalytic activity is strongly coupled to the electronic character of the Sc(III) ligand environment with chelating diamide coordination providing a precatalyst possessing substantially improved activity and superb distereoselectivity in the synthesis of trans-2,5-disubstituted pyrrolidines
Intramolecular alkene hydroaminations catalyzed by simple amido derivatives of the Group 3 metals
作者:Young Kwan Kim、Tom Livinghouse、John E. Bercaw
DOI:10.1016/s0040-4039(01)00346-x
日期:2001.4
Bis(trimethylsilyl) amides of the type Ln[N(TMS)2]3 have been found to be competent catalysts for representative intramolecularalkene hydroaminations. The catalytic cyclization of an aminodiene proceeds in a stepwise manner to provide the corresponding monocycle and bicycle in a highly stereocontrolled manner.
Reverse Cope elimination reactions. 2. Application to synthesis
作者:Engelbert Ciganek
DOI:10.1021/jo00123a014
日期:1995.9
Intramolecular addition of N,N-disubstitute hydroxylamines to unactivated olefins was used to prepare an indolizine, a pyrrolo[2,1-a]isoquinoline, a 1,8-diazaspiro[4.5]decane, a cyclopenta[b]pyrrole, and an isoindoline. A pyrrolizine and a 1-azabicyclo[2.2.1] heptane were synthesized from acyclic precursors by two consecutive reverse Cope elimination reactions.
SUBBOTIN, O. A.;SKVORTSOV, I. M., XIMIYA GETEROTSIKL. SOEDIN., 1985, N 12, 1638-1647
作者:SUBBOTIN, O. A.、SKVORTSOV, I. M.
DOI:——
日期:——
Kozina, M. P.; Timofeeva, L. P.; Gal'chenko, G. L., Journal of General Chemistry of the USSR, 1981, vol. 51, # 2, p. 367 - 372
作者:Kozina, M. P.、Timofeeva, L. P.、Gal'chenko, G. L.、Skvortsov, I. M.、Antipova, I. V.