2-dicarboxylic anhydride has been transformed into the 1,4-annulated cyclooctatetraene 1, which in turn was resolved via Its diastereomeric endo-bornyltriazolinedione Diels-Alder adducts; 1 did not racemize during 23 hours at 158°C.
环庚烯-1,2-二
羧酸酐已被改造成的1,4 -环辛四烯1,其又经由非对映体及其解决内切-bornyltriazolinedione狄尔斯-阿德耳加合物; 1在158°C下23小时未消旋。