The Propargyl Rearrangement to Functionalised Allyl-Boron and Borocation Compounds.
The Propargyl Rearrangement to Functionalised Allyl-Boron and Borocation Compounds.
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DOI:
10.1002/chem.201602719
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发表时间:
2016-10
期刊:
影响因子:
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通讯作者:
Lewis C Wilkins;J. R. Lawson;Philipp Wieneke;F. Rominger;A. Hashmi;M. Hansmann;Rebecca L. Melen
中科院分区:
文献类型:
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作者:
Lewis C Wilkins;J. R. Lawson;Philipp Wieneke;F. Rominger;A. Hashmi;M. Hansmann;Rebecca L. Melen
A diverse range of Lewis acidic alkyl, vinyl and aryl boranes and borenium compounds that are capable of new carbon-carbon bond formation through selective migratory group transfer have been synthesised. Utilising a series of heteroleptic boranes [PhB(C6 F5 )2 (1), PhCH2 CH2 B(C6 F5 )2 (2), and E-B(C6 F5 )2 (C6 F5 )C=C(I)R (R=Ph 3 a, nBu 3 b)] and borenium cations [phenylquinolatoborenium cation ([QOBPh][AlCl4 ], 4)], it has been shown that these boron-based compounds are capable of producing novel allyl- boron and boronium compounds through complex rearrangement reactions with various propargyl esters and carbamates. These reactions yield highly functionalised, synthetically useful boron substituted organic compounds with substantial molecular complexity in a one-pot reaction.