Spectroscopic analysis of the 1,1,3-trioxy dienes (1), (2) shows them to possess ()-stereochemistry, contrary to several literature assignments; characterisation of derived cycloadducts and crystallographic analysis of one of them (20) establishes cycloaddition.
1,1,3-三氧基二烯(1),(2 )的光谱分析表明,它们具有()-立体
化学,与一些文献工作相反。表征衍生的环加合物并对其之一进行晶体学分析(20)建立环加成。