Diastereoselective synthesis of 2,5-dialkyl tetrahydrofuran-3-ones by a copper-catalysed tandem carbenoid insertion and ylide rearrangement reaction
摘要:
Cu(acac)2-Catalysed cyclisations of the alpha-diazo ketones 3, result in the diastereoselective formation (>97:3) of the trans-2,5-dialkyl tetrahydrofuran-3-ones 4. The yields and levels of diastereoselection are catalyst, solvent, and temperature dependent.
Diastereoselective synthesis of 2,5-dialkyl tetrahydrofuran-3-ones by a copper-catalysed tandem carbenoid insertion and ylide rearrangement reaction
摘要:
Cu(acac)2-Catalysed cyclisations of the alpha-diazo ketones 3, result in the diastereoselective formation (>97:3) of the trans-2,5-dialkyl tetrahydrofuran-3-ones 4. The yields and levels of diastereoselection are catalyst, solvent, and temperature dependent.