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Cyclopropanation and Isomerization Reactions of β-Diketiminato Boron Complexes

By Liang Xie (111669), Hongfan Hu (1791835) and Chunming Cui (1446892)

Abstract

The reaction of HC­[(CBu<sup><i>t</i></sup>)­(NAr)]<sub>2</sub>Li with BCl<sub>3</sub> yielded the azaallyl boron dichloride [ArNC­(Bu<sup><i>t</i></sup>)­C­(H)­C­(Bu<sup><i>t</i></sup>)­N­(Ar)]­BCl<sub>2</sub> (<b>1</b>), which can be converted to the β-diketiminato boron dichloride HC­[(CBu<sup><i>t</i></sup>)­(NAr)]<sub>2</sub>BCl<sub>2</sub> (<b>2</b>) upon heating at 40 °C. Reaction of <b>1</b> with the bulky lithium salts LiN­(SiMe<sub>3</sub>)<sub>2</sub> and MesLi (Mes = 2,4,6-Me<sub>3</sub>C<sub>6</sub>H<sub>2</sub>) resulted in the cyclopropanation of the CBu<sup><i>t</i></sup> group via the deprotonation of the methyl group, while reactions with PhLi and LiNEt<sub>2</sub> gave substitution products

Topics: Biochemistry, Cell Biology, Molecular Biology, Pharmacology, Sociology, Infectious Diseases, Plant Biology, Environmental Sciences not elsewhere classified, Biological Sciences not elsewhere classified, Chemical Sciences not elsewhere classified, methyl group, cyclopropanation, heating, 3C, CBut group, Diketiminato, MesLi, HC, substitution products, LiNEt 2, azaallyl boron dichloride, diketiminato, Boron, Isomerization Reactions, lithium, ComplexesThe, Me, PhLi, deprotonation, ArN, Cyclopropanation, BCl 3
Year: 2012
DOI identifier: 10.1021/om300337r.s003
OAI identifier: oai:figshare.com:article/2511349
Provided by: FigShare
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