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Chiral Bicyclic Bridgehead Phosphoramidite (Briphos) Ligands for Asymmetric Rhodium-Catalyzed 1,2- and 1,4-Addition
The Journal of Organic Chemistry ( IF 3.3 ) Pub Date : 2016-04-25 00:00:00 , DOI: 10.1021/acs.joc.6b00033 Ansoo Lee 1 , Hyunwoo Kim 1
The Journal of Organic Chemistry ( IF 3.3 ) Pub Date : 2016-04-25 00:00:00 , DOI: 10.1021/acs.joc.6b00033 Ansoo Lee 1 , Hyunwoo Kim 1
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A complementary solution for Rh-catalyzed enantioselective 1,2- and 1,4-arylation with two structurally related chiral ligands is reported. A chiral bicyclic bridgehead phosphoramidite (briphos) ligand derived from 1-aminoindane was efficient for the 1,2-arylation of N-sulfonyl imines, while that derived from 1,2,3,4-tetrahydro-1-naphthylamine was efficient for 1,4-arylation of α,β-unsaturated cyclic ketones. For α,β-unsaturated N-tosyl ketimines, the briphos derived from 1-aminoindane was found to selectively provide γ,γ-diaryl N-tosyl enamines with high yields and stereoselectivities.
中文翻译：
手性双环桥头亚磷酰胺（Briphos）配体，用于不对称铑催化的1,2-和1,4-加成
报道了具有两个结构上相关的手性配体的Rh催化对映选择性1，2-和1，4-芳基化的互补溶液。衍生自1-氨基茚满的手性双环桥头亚磷酰胺（briphos）配体对于N-磺酰基亚胺的1,2-芳基化反应有效，而衍生自1,2,3,4-四氢-1-萘胺的手性双环桥头磷酰胺则有效α，β-不饱和环酮的; 4-芳基化。对于α，β-不饱和N-甲苯磺酰基酮亚胺，发现衍生自1-氨基茚满的Briphos选择性地提供了高产率和立体选择性的γ，γ-二芳基N-甲苯磺酰基烯胺。
更新日期：2016-04-25
中文翻译：
手性双环桥头亚磷酰胺（Briphos）配体，用于不对称铑催化的1,2-和1,4-加成
报道了具有两个结构上相关的手性配体的Rh催化对映选择性1，2-和1，4-芳基化的互补溶液。衍生自1-氨基茚满的手性双环桥头亚磷酰胺（briphos）配体对于N-磺酰基亚胺的1,2-芳基化反应有效，而衍生自1,2,3,4-四氢-1-萘胺的手性双环桥头磷酰胺则有效α，β-不饱和环酮的; 4-芳基化。对于α，β-不饱和N-甲苯磺酰基酮亚胺，发现衍生自1-氨基茚满的Briphos选择性地提供了高产率和立体选择性的γ，γ-二芳基N-甲苯磺酰基烯胺。
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