Well-defined and easily accessible yttrium complexes for enantioselective cyclisation of amines tethered to 1,2-di-substituted alkenes

[摘要]：A straightforward in situ preparation of new chiral amido alkyl ate yttrium complexes is described. They catalysed the enantioselective cyclisation of 1,2-dialkyl-substituted aminopentenes in up to 77% ee, a significant value for this challenging transformation. Complex [(R)-L-0][Y(CH2TMS)(2)center dot Li(THF)(4)] undergoes C-H bond activation resulting in the formation of an original dimeric heterobimetallic yttrium complex which also acts as an active precatalyst.

[全文传递流程]：

一般上传文献全文的时限在1个工作日内