Synthesis of Primitive Dendrimer Systems Bearing Bicyclo[3,2,0]Hept-6-en-6-yl Groups<i>via</i>Unique Au-catalyzed [2+2] Cyclization
作者:Kyu Hwan Lee、Raveendra Jillella、Jaewoong Kim、Chang Ho Oh
DOI:10.1002/bkcs.11445
日期:2018.5
tandem [2+2] cyclization to give the corresponding 6‐acylbicyclo[3,2,0]hept‐6‐ens. In continuing work, we prepared various substrates bearing two arms of alkyne‐propargylic pivaloates to explore primitive dendrimer concept bicyclic compounds. Finally, we could obtain a series of diasteromeric compounds bearing two arms of 6‐acylbicyclo[3,2,0]hept‐6‐ene groups in high yields.
在金催化下在三碳链上带有炔基的炔丙基新戊酸酯将进行炔丙基新戊酸酯的[3,3]重排,然后串联[2 + 2]环化得到相应的6-酰基双环[3,2,0]庚6 ENS。在继续的工作中,我们准备了带有两个炔炔新戊酸酯的两个臂的底物,以探索原始的树状体概念双环化合物。最后,我们可以高收率获得一系列带有6个酰基双环[3,2,0]庚-6-烯基臂的非对映异构化合物。