In boiling xylene the cyclopentadienedione 1 is thermally decarbonylated to cis-8,9-dihydroindenone (8). This method avoids secondary reactions and allows the preparation of 8 in high yield.
在沸腾的二
甲苯中,将
环戊二烯二酮1热脱羰成顺式-8,9-二氢
茚满酮(8)。该方法避免了次级反应,并允许高产率地制备8。