A t-BuOCu-initiated reaction sequence of styrene borometalation and intramolecular imine addition has been achieved using a Cu(OTf)2/dppf combination as catalyst. The product of this reaction cascade is a useful 2,3-disubstituted indoline bearing a versatile boryl moiety and is formed with sole cis-selectivity. To account for the observation of the exclusive formation of cis-stereoisomers, a transition
甲叔
苯乙烯borometalation和分子内
亚胺加入BuOCu发起的反应序列已经被使用的Cu(OTF)达到2 /
DPPF组合作为催化剂。该反应级联的产物是有用的2,3-二取代的二氢
吲哚,其带有通用的
硼烷基部分,并且具有唯一的顺式选择性。为了解释观察到的顺式-立体异构体的排他性形成,提出了一种以
铜-
亚胺配位为特征的过渡态。描述了在合成
抗氧化剂四氢
茚并
吲哚中的应用。