Fluorination with Xenon Difluoride. 23. Fluorination of Ortho Substituted Aromatic Molecules
作者:Boris Šket、Marko Zupan
DOI:10.1246/bcsj.54.279
日期:1981.1
The fluorination of 9,10-dihydroanthracene and triptycene with xenon difluoride in the presence of hydrogen fluoride occurred at α and β position with β attack predominating over α attack, while the reaction with acenaphthene resulted in the formation of 2- and 4-fluorosubstituted products, regioselectivity being very little affected by the nature of the catalyst: hydrogen fluoride, boron trifluoride
在氟化氢存在下,9,10-二氢蒽和三苯乙烯与二氟化氙在α和β位发生氟化,β攻击占α攻击的优势,而与苊的反应导致形成2-和4-氟取代的产物,区域选择性受催化剂性质的影响很小:氟化氢、三氟化硼和五氟苯硫酚。1,2,3,4-四氢-1,4-甲萘的氟化导致6-氟-1,2,3,4-四氢-1,4-甲萘、6,7-二氟-1的形成,2,3,4-四氢-1,4-甲萘和重排产物1-(2,2-二氟乙基)茚满。