N-Halogeno compounds. Part 13. N-Fluoroquinuclidinium salts — synthesis and use as electrophilic fluorinating agents
作者:Ronald Eric Banks、Iqbal Sharif
DOI:10.1016/s0022-1139(00)80123-2
日期:1991.12
heptafluoro-n-butyrate and tetrafluoroboratesalts were procured in a two-step fashion by adding the appropriatesodium salts to acetonitrile solutions of N-fluoroquinuclidinium fluoride. Site-specificfluorination of phenylmagnesium bromide (to PhF), diethyl sodio(phenyl)malonate [toPhCF(CO2Et)2], 2-nitropropan-2-yl-lithium [to Me2CFNO2], 1-morpholinocyclohexene [toCH2(CH2)3CHFCO], phenol (to 2- and 4-FC6H4OH+1
已经开发了一种方便的一锅法,用于从奎尼丁,三氟甲磺酸锂和氟制备易于处理的亲电氟化剂三氟甲磺酸N-氟喹啉锂。相应的三氟乙酸盐,七氟正丁酸盐和四氟硼酸盐以两步方式获得,方法是将适当的钠盐添加到N-氟喹啉氟化锂的乙腈溶液中。苯甲基溴化镁(至PhF),丙二酸二(苯基)丙二酯[至PhCF(CO 2 Et)2 ],2-硝基丙烷-2-基锂[至Me 2 CFNO 2 ],1-吗啉代环己烯[toCH2( CH2)3CHFCO],苯酚(至2-和4-FC 6 H 4 OH + 1,4-F使用这些新的N-氟喹啉鎓盐获得了2 C 6 H 3 OH)和苯磺酸钠(PhSO 2 F)。