作者:Abolghasem (Gus) Bakhoda、Quan Jiang、Jeffery A. Bertke、Thomas R. Cundari、Timothy H. Warren
DOI:10.1002/anie.201611275
日期:2017.6
arylnitrene p-position to give the dicopper(II) diketimide 4 (Ar=2,6-iPr2C6H3) or undergo nitrile insertion to give diazametallocyclobutene 8 (Ar=4-Ph-2,6-iPr2C6H2). Importantly, reactivity studies reveal both 4 and 8 to be “masked” forms of the terminal nitrenes [iPr2NN]Cu=NAr that undergo nitrene group transfer to PMe3, tBuNC, and even into a benzylic sp3 C−H bond of ethylbenzene.
我们在此报告了芳基叠氮化物N 3 Ar与庞大的β-二酮铜(I)之间的三种新反应模式。在[ i Pr 2 NN] Cu(NCMe)中添加N 3 Ar X3(Ar X3 = 2,4,6-X 3 C 6 H 2; X = Cl或Me)会导致叠氮化物对β的进攻而形成三氮烯基配合物。 -diketiminato主干。[ i Pr 2 NN] Cu(NCMe)与较大的叠氮化物N 3 Ar的反应导致末端的亚硝基[ i Pr 2 NN] Cu] = NAr通过在芳基氮杂烯p上形成C-C键而二聚-位得到二酮亚胺双铜(II)4(Ar = 2,6- i Pr 2 C 6 H 3)或进行腈插入得到二氮杂金属环丁烯8(Ar = 4-Ph-2,6-iPr 2 C 6 H 2)。重要的是,反应性研究表明,4和8均是末端氮的“掩蔽”形式[ i Pr 2 NN] Cu = NAr,它们经过亚氮基转移至PMe 3,t BuNC,甚至进入苄基sp