Regioselective synthesis of 6-fluorodopamine, 6-fluoro-m-tyramine and 4-fluoro-m-tyramine using elemental fluorine, oxygen difluoride and acetyl hypofluorite
作者:Mohammad Namavari、N. Satyamurthy、Jorge R. Barrio
DOI:10.1016/0022-1139(95)03259-g
日期:1995.9
6-Fluorodopamine was regioselectively synthesized in good yields from N-(trifluoroacetyl)-3,4-di-t-butoxycarbonyloxy-6-(trimethylstannyl)phenylethylamine (6) via a fluorodestannylation reaction using F2 OF2 or CH3COOF followed by acid hydrolysis. Similarly, 6-fluoro-m-tyramine (14) and 4-fluoro-m-tyramine (20) were prepared from their corresponding trimethylstannyl derivatives. All precursors and products
N-(三氟乙酰基)-3,4-二-叔丁氧羰基氧基-6-(三甲基锡烷基)苯基乙胺(6)经氟甲锡烷基化反应(使用F 2 OF 2或CH 3 COOF),然后高选择性地合成6-氟罗丹明酸水解。类似地,6-氟米-tyramine (14)和4-氟米-tyramine (20)从它们的相应的三甲基甲锡衍生物制备。所有前体和产物均通过多核NMR光谱和高分辨率质谱法进行了充分表征。