A Suzuki cross-coupling route to substituted aziridines
作者:David J Lapinsky、Stephen C Bergmeier
DOI:10.1016/s0040-4039(01)01903-7
日期:2001.12
We have shown that the Suzuki cross-coupling reaction of olefinic aziridines is an effective route for the synthesis of substitutedaziridines. This is the first example of a palladium coupling reaction applied to an aziridine-containing molecule. This method is complementary to other methods of aziridine synthesis utilizing organocuprate reagents.
Direct Synthesis of 2-Formylpyrrolidines, 2-Pyrrolidinones and 2-Dihydrofuranones via Aerobic Copper-Catalyzed Aminooxygenation and Dioxygenation of 4-Pentenylsulfonamides and 4-Pentenylalcohols
作者:Tomasz Wdowik、Sherry R. Chemler
DOI:10.1021/jacs.7b05680
日期:2017.7.19
and a 2-ketopyrrolidine has been developed. This transformation occurs via aerobic copper-catalyzed alkene aminooxygenation where molecular oxygen serves as both oxidant and oxygen source. The 2-formylpyrrolidines can further undergo oxidative carbon-carbon bond cleavage in situ upon addition of DABCO, providing 2-pyrrolidinones. These transformations have been demonstrated for a range of 4-pentenylsulfonamides
Osmium-Mediated Oxidative Cyclizations: A Study into the Range of Initiators That Facilitate Cyclization
作者:Timothy J. Donohoe、Katherine M. P. Wheelhouse (née Gosby)、Peter J. Lindsay-Scott、Gwydion H. Churchill、Matthew J. Connolly、Sam Butterworth、Paul A. Glossop
DOI:10.1002/asia.200900168
日期:2009.8.3
application of a wide range of starting materials to the osmium‐catalyzed oxidativecyclization reaction is described. Diols, hydroxy‐amides, hydroxy‐sulfonamides, and carbamates all cyclize in moderate to excellent yields to give cis‐tetrahydrofurans and pyrrolidines, depending upon the position of the heteroatoms in the starting materials. These cyclizations all proceed with near total selectivity for the