Elaboration of phosphoramidite ligands enabling palladiumcatalyzed diastereo- and enantioselective all carbon [4+3] cycloaddition
Elaboration of phosphoramidite ligands enabling palladiumcatalyzed diastereo- and enantioselective all carbon [4+3] cycloaddition
复制标题
亚磷酰胺配体的精制能够实现钯催化的非对映和对映选择性全碳[4 3]环加成
DOI:
10.1007/s11426-020-9718-2
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Deng Wei-Ping
中科院分区:
文献类型:
--
作者:
Zheng Xing;Sun Hao;Yang Wu-Lin;Deng Wei-Ping
A palladium-catalyzed diastereo- and enantioselective all carbon [4+3] cycloaddition of trimethylenemethane was developed by employing the elaborate tetrahydroquinoline-derived phosphoramidite ligand. The exclusive regioselectivity was realized by using the aromatization-driven diene indole-2,3-quinodimethanes, affording biologically important cyclohepta[b]indoles with excellent diastereo-, and enantioselectivities (up to >20:1 dr, >99% ee). Furthermore, the more challenging pyrrolidone-3,4-dienes, in the absence of aromatization force, were also compatible inthereaction, providing novel cyclohepta[c]pyrrol-1(2H)-ones with excellent regio-, diastereo-, and enantioselectivities (up to >20:1 rr, >20:1 dr, >99% ee).