Cycloaddition and one-carbon homologation studies in the synthesis of advanced iridoid precursors
作者:Anne T. Stevens、Mino R. Caira、James R. Bull、Kelly Chibale
DOI:10.1039/b902452b
日期:——
intermediate of iridoids was explored using silylated butenolides and levoglucosenone as dienophiles under both Lewis acid and thermal conditions. Results of this study reveal no evidence that using less sterically demanding derivatives compromise the diastereofacial selectivity of the cycloaddition using silylated butenolides. Further chemistry performed on cycloadducts concentrated on the identification