Motamed Massoud, Bunnelle Eric M, Singaram Surendra W, Sarpong Richmond
Department of Chemistry, University of California, Berkeley, California 94720, USA.
Org Lett. 2007 May 24;9(11):2167-70. doi: 10.1021/ol070658i. Epub 2007 Apr 24.
Pt(II)-catalyzed cycloisomerization of aziridinyl propargylic esters affords 1,2-dihydropyridines with regiodefined installation of substituents. A mild conversion of the 1,2-dihydropyridines to the corresponding substituted pyridines as well as chirality retention from the aziridinyl propargylic ester substrates have been demonstrated.
铂(II)催化氮丙啶基炔丙基酯的环异构化反应可提供具有区域选择性取代基的1,2 - 二氢吡啶。已证明1,2 - 二氢吡啶可温和转化为相应的取代吡啶,并且能从氮丙啶基炔丙基酯底物中保持手性。