An optically active 5-methylenedioxolan-4-one derivative is subjected to Diels-Alder reaction with cyclopentadiene, and the resulting Diels-Alder reaction product is hydrolyzed to convert it into an optically active 2-hydroxynorbornene-2-carboxylic acid, which is then subjected to catalytic hydrogenation to form an optically active 2-hydroxynorbornane-2-carboxylic acid. The hydroxycarboxylic acid is subjected to oxidative decarboxylation to obtain an optically active 2-norbornanone.
                            一种具有光学活性的5-甲烯基二氧杂
环己酮衍
生物被用于与
环戊二烯进行Diels-Alder反应,得到的Diels-Alder反应产物被
水解转化为具有光学活性的2-羟基去氢
萘-2-
羧酸,然后进行催化加氢,形成具有光学活性的2-羟基去氢
萘-2-
羧酸。羟基
羧酸经过氧化脱羧反应,得到具有光学活性的2-去氢
萘酮。