Reactivity of Scandium Terminal Imido Complex toward Boranes: C(sp3)–H Bond Borylation and B–O Bond Cleavage
| Autor: | Li Xiang, Chen Wang, Yaofeng Chen, Jiaxiang Chu, Xuebing Leng |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010405 organic chemistry
Hydrogen bond Ligand Organic Chemistry chemistry.chemical_element Boranes 010402 general chemistry Photochemistry 01 natural sciences Medicinal chemistry Borylation 0104 chemical sciences Inorganic Chemistry chemistry.chemical_compound chemistry Reactivity (chemistry) Scandium Physical and Theoretical Chemistry Bond cleavage Catecholborane |
| Zdroj: | Organometallics. 36:4620-4625 |
| ISSN: | 1520-6041 0276-7333 |
| DOI: | 10.1021/acs.organomet.7b00452 |
| Popis: | Scandium terminal imido complex [(NNNN)Sc═NDIPP] (2; NNNN = [MeC(N(DIPP))CHC(Me)(NCH2CH2NMeCH2CH2NMe2)]−, DIPP = 2,6-iPr2C6H3) 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(sp3)–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. |
| Databáze: | OpenAIRE |
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