Catalyst loading controls chemoselectivity: unusual effect in rhodium(ii) carbene insertion reactions with tetrahydrofuran “2279

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SUMMARY

Metal carbene species generated from α-diazocarbonyl compounds can display a number of useful reactivities. The observed composition, indeed, can be interpreted preted as the result of competing reaction pathways rather than the potential interconver2 (esp) 2 catalyst (1 mol%) at 30 °C for up to seven days, whereupon it represence of Rh as the result of competing pathways rather product than the 3a potential interconversion sion of products 2a and 3a. reaction In a control experiment, product 3a was kept in THF in the presence presence 2(esp)2 catalyst (1 mol%) at 30 . . .

 



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