作者: José A. Serrano , Luis E. Cáceres , Emilio Román
DOI: 10.1039/P19950001863
关键词: Reactivity (chemistry) 、 Regioselectivity 、 Chemistry 、 Diels alder 、 Sugar 、 Organic chemistry
摘要: Uncatalysed Diels–Alder reactions between 1-(trimethylsiloxy)- or 1-acetoxy-buta-1,3-diene and sugar-derived nitroalkenes having D-galacto D-manno configurations proceeded with complete regioselectivity. Diastereofacial specificity was also the dienophile, whereas it only moderate D-manno. With 1-acetoxybuta-1,3-diene, interaction reactants took place exclusively in endo mode. Starting from cycloadducts, a series of highly functionalised chiral compounds have been prepared, their conformations stereochemistries being investigated.