Abstract
Gold(I) catalysts are considered to be efficient in promoting sp2 C–H bond insertion at the para position of unprotected phenols because of the exceptionally chemical reactivity of gold-stabilized carbophilic carbocations. Herein, we present a gold(I)-catalysed three-component reaction between phenols, diazocarbonyl compounds and allenamides, affording the corresponding three-component reaction products with excellent geometric selectivity (E : Z > 20 : 1) in moderate to high yields (up to 90%) under mild conditions. Additionally, a gram-scale transformation and diverse transformations of the resulting product show the high synthetic utility of the present three-component protocol.
Original language | English |
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Pages (from-to) | 1649-1652 |
Number of pages | 4 |
Journal | Chemical Communications |
Volume | 56 |
Issue number | 11 |
DOIs | |
Publication status | Published - 7 Feb 2020 |
Externally published | Yes |