In diene-additions of maleic-anhydride with naphthalene derivatives at 8–10000 atm, some derivatives react only under pressure, others react with pressure much better than without Substituents in 1- or 1,4- positions direct the addition to the unsubstituted ring. Alkyl substituents in 2- or 2,3- positions direct the addition to the substituted ring. The proportion of endo-isomer was determined by jodlactonetitration
在8–10000 atm的
马来酸酐与
萘衍
生物的二烯加成反应中,某些衍
生物仅在压力下反应,而另一些衍
生物在压力下的反应要好于没有在1或1,4-位上的取代基直接将其加成至未取代的环上。在2-或2,3-位的烷基取代基指导加成至取代的环。内异构体的比例通过jodlactonetitration确定。