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A AgOAc/quinine-derived aminophosphine complex as an efficient catalyst for diastereo- and enantioselective 1, 3-dipolar cycloaddition of α, β-unsaturated 7-azaindoline amides and azomethine ylides. Issue 11 (24th April 2019)
Record Type:
Journal Article
Title:
A AgOAc/quinine-derived aminophosphine complex as an efficient catalyst for diastereo- and enantioselective 1, 3-dipolar cycloaddition of α, β-unsaturated 7-azaindoline amides and azomethine ylides. Issue 11 (24th April 2019)
Main Title:
A AgOAc/quinine-derived aminophosphine complex as an efficient catalyst for diastereo- and enantioselective 1, 3-dipolar cycloaddition of α, β-unsaturated 7-azaindoline amides and azomethine ylides
Abstract : The Dixon's catalyst system is effective for the asymmetric 1, 3-dipolar cycloaddition. Abstract : A quinine-derived aminophosphine/Ag(i ) complex was firstly demonstrated to be an efficient catalyst for the highly stereoselective 1, 3-dipolar cycloaddition of azomethine ylides with challenging α, β-unsaturated amide substrates. A wide range of densely functionalized pyrrolidine derivatives containing four contiguous stereogenic centers could be smoothly obtained with excellent diastereo- and enantioselectivities.