Stereoselective Synthesis of 3,6-Disubstituted 1,2-Diaminocyclohexanes through Ring-Closing Metathesis of 4,5-Diamino-1,7-octadiene Derivatives
作者:Diego Savoia、Carla Boga、Claudio Fiorelli
DOI:10.1055/s-2005-918515
日期:——
3,6-Disubstituted 4,5-di[(S)-1-phenylethylamino]-1,7-octadienes with different configurations at the carbon stereocenters were protected as dihydrochlorides or cyclic phosphorous diamides and then converted into (1R,2R)-3,6-disubstituted 1,2-diaminocyclohexanes through ruthenium-catalyzed ring-closing metathesis and subsequent hydrogenolysis-hydrogenation steps.
将碳立构中心不同构型的3,6-二取代4,5-二[(S)-1-苯乙基氨基]-1,7-辛二烯保护为二盐酸盐或环状磷二酰胺,然后转化为(1R,2R)-通过钌催化的闭环复分解反应和随后的氢解-氢化步骤生成 3,6-二取代的 1,2-二氨基环己烷。