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Gold-catalyzed [4+3]- and [4+2]-annulations of 3-en-1-ynamides with isoxazoles via novel 6π-electrocyclizations of 3-azahepta trienyl cations

New gold-catalyzed [4+3]-annulations of 3-en-1-ynamides with isoxazoles afford 4H-azepines efficiently; this process involves 6π electrocyclizations of gold-stabilized 3-azaheptatrienyl cations. In the presence of Zn(OTf)(2), the resulting 4H-azepines undergo skeletal rearrangement to furnish substi...

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Pubblicato in:Chem Sci
Autori principali: Giri, Sovan Sundar, Liu, Rai-Shung
Natura: Artigo
Lingua:Inglês
Pubblicazione: Royal Society of Chemistry 2018
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Accesso online:https://ncbi.nlm.nih.gov/pmc/articles/PMC5915799/
https://ncbi.nlm.nih.gov/pubmed/29732082
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1039/c8sc00232k
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