Cu(I) β-diketiminates for alkene aziridination:: Reversible Cu-arene binding and catalytic nitrene transfer from Phl=NTs

被引：65

作者：

Amisial, LD ^{[1
]}

Dai, XL ^{[1
]}

Kinney, RA ^{[1
]}

Krishnaswamy, A ^{[1
]}

Warren, TH ^{[1
]}

机构：

[1] Georgetown Univ, Dept Chem, Washington, DC 20057 USA

来源：

INORGANIC CHEMISTRY | 2004年 / 43卷 / 21期

关键词：

D O I：

10.1021/ic048968+

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

beta-Diketiminato Cu(I)-lutidine complexes [RMeNN]Cu(2,4-lutidine) (R = Me (4a), Pr-i (4b)) were prepared in high yield from TI[RMeNN] and [CuBr(2,4-lutidine)(2)](2). Both 4a and 4b reversibly dissociate lutidine base in toluene to give [RMeNN]Cu(toluene) solvento complexes. A related base-free dicopper species {[Me2NN]Cu}(2) (6) bridged via eta(2)-binding of opposing N-aryl rings could be isolated by the addition of TI[Me2NN] to CuBr. The lutidine precursors serve as precatalysts for the aziridination of alkenes with PhI=NTs. Styrene, beta-methylstyrene, and cyclooctene gave the highest yields (59-96%) with a low olefin to Phl=NTs ratio (3:1) and 5 mol % catalyst loading.

引用

页码：6537 / 6539

页数：3

共 37 条

[31] Enantioselective catalytic aziridinations and asymmetric nitrene insertions into CH bonds [J].