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Manganese(III) Acetate Mediated Free Radical Cyclization of 1,3-Dicarbonyl Compounds with Sterically Hindered Olefins
Manganese(III) acetate free radical cyclization 1,3-dicarbonyl 4,5-dihydrofuran tetrahydrobenzofuran trifluoroacetyl oxidative addition
2010/4/19
The manganese(III) acetate mediated radical cyclization of dimedone 1a, 2,4-pentanedione 1b, ethyl acetoacetate 1c, 1,3-cyclohexanedione 1d and 5-phenyl-1,3-cyclohexanedione 1e with 1,1-diphenyl-1-but...
Search for a Nonelectrocyclic Cyclization of Nitrosostyrene: Rearrangements of Michael Adducts from DMAD and a-Dialkylamino Oximes
Nonelectrocyclic Cyclization of Nitrosostyrene DMAD a-Dialkylamino Oximes
2010/4/21
The aza-Claisen rearrangement product of the Michael adducts 2 from a-dialkylaminoacetophenone oximes and DMAD underwent fragmentation to give dialkylaminomaleate, and benzonitrile at reflux in aceton...