期刊
ADVANCED SYNTHESIS & CATALYSIS
卷 351, 期 3, 页码 379-386出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.200900056
关键词
[2+2]cycloaddition; cyclobutenes; gold; homogeneous catalysis
The gold(I)-catalysed isomerisation of 1,8-enynes allows the efficient synthesis of functionalised bicyclo[5.2.0]nonenes. Notably, these cyclobutenes derivatives can be isolated as reactive intermediates that could undergo subsequent gold(I)-catalysed transformations such as isomerisation, fragmentation or ene reaction to furnish more structurally complex products. This study also provides useful information related to the mechanism leading to metathesis-type derivatives, examples of which were shown to be produced, in the present case, by a gold(I)-catalysed ring fragmentation of the cyclobutene moiety.
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