Development of a Stepwise [3 + 3] Annelation to Functionalized Piperidines
摘要:
A stepwise formal [3 + 3] cycloaddition sequence via a Grignard addition-cyclization reaction leads to a much improved piperidine synthesis. This methodology provides improved flexibility in both the aziridine substrate and TMM equivalent.
Development of a Stepwise [3 + 3] Annelation to Functionalized Piperidines
作者:Katharine M. Goodenough、Piotr Raubo、Joseph P. A. Harrity
DOI:10.1021/ol050965t
日期:2005.7.1
A stepwise formal [3 + 3] cycloaddition sequence via a Grignard addition-cyclization reaction leads to a much improved piperidine synthesis. This methodology provides improved flexibility in both the aziridine substrate and TMM equivalent.
A [3+3] Annelation Approach to Tetrahydropyridines
作者:Lisa C. Pattenden、Robert A. J. Wybrow、Stephen A. Smith、Joseph P. A. Harrity
DOI:10.1021/ol0610789
日期:2006.7.1
[reaction: see text] A stepwise [3+3] annelation sequence to tetrahydropyridines via addition of the Buchi Grignard to aziridines has been developed. These intermediates can be further functionalized with good regio- and stereocontrol and this methodology has been employed in the stereoselective formal synthesis of (-)-dihydropinidine.