Reactivity of Scandium Terminal Imido Complex toward Boranes: C(sp3)-H Bond Borylation and B-O Bond Cleavage

被引：16

作者：

Chu, Jiaxiang ^{[1
]}

Wang, Chen ^{[1
]}

Xiang, Li ^{[1
]}

Leng, Xuebing ^{[1
]}

Chen, Yaofeng ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Organ Chem, State Key Lab Organometall Chem, 345 Lingling Rd, Shanghai 200032, Peoples R China

来源：

ORGANOMETALLICS | 2017年 / 36卷 / 23期

基金：

中国国家自然科学基金;

关键词：

C-H ACTIVATION; STRUCTURAL-CHARACTERIZATION; CRYSTAL-STRUCTURE; LANTHANIDE; TRANSFORMATIONS; LIGAND; IMINOBORANES; BOROHYDRIDE; METATHESIS; HYDRIDE;

D O I：

10.1021/acs.organomet.7b00452

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Scandium terminal imido complex [(NNNN)Sc=NDIPP] (2; NNNN = [MeC(N(DIPP))CHC(Me)-(NCH2CH2NMeCH2CH2NMe2)](-), DIPP = 2,6-(Pr2C6H3)-Pr-i) reacts with 9-borabicyclononane (9-BBN) to give scandium borohydride [(NNNN(B)-H)Sc(N(H)DIPP)] (3; NNNN(B)-H = [MeC(N(DIPP))CHC(Me)-(NCH2CH2NMeCH2CH2N(Me)CH2(BBN)](2-)), and C(sp(3))-H bond borylation of the NNNN ligand occurs during this reaction. In contrast, the reaction between complex 2 and catecholborane (CatBH) gives scandium catecholate [(NNNN)Sc(Cat)] (4), and B-O bond cleavage happens during this reaction. Both 3 and 4 have been well-characterized including the single-crystal X-ray diffraction analysis. Reaction of 2 with bis(catecholato)diboron (CatB-BCat) also gives a B-O bond cleavage product.

引用

页码：4620 / 4625

页数：6

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