Gold(III) porphyrin-catalyzed cycloisomerization of allenones

Cong Ying Zhou, Philip Wai Hong Chan, Chi Ming Che

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Gold(III) porphyrin-catalyzed cycloisomerization of allenones gave the corresponding furans in good to excellent yields (up to 98%) and with quantitative substrate conversions. By recovering the Au(III) catalyst, a recyclable catalytic system is developed with over 8300 product turnovers attained for the cycloisomerization of 1-phenyl-buta-2,3-dien-1-one. The versatility of the gold(III) porphyrin catalyst was exemplified by its application to the hydroamination and hydration of phenylacetylene in 73% and 87% yield, respectively.

Original languageEnglish
Pages (from-to)325-328
Number of pages4
JournalOrganic Letters
Issue number2
Publication statusPublished - 19 Jan 2006
Externally publishedYes

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