作者:S.I. Zhivetyeva、G.A. Selivanova、L.I. Goryunov、I.Yu. Bagryanskaya、V.D. Shteingarts
DOI:10.1016/j.jfluchem.2015.08.018
日期:2015.12
phosphanodefluorination of fluoranil was observed in MeOH. The triphenyl(3,4,6,6-tetrafluoro-2-oxido-5-oxocyclohexa-1,3-dien-1-yl)phosphanium and its analogs serves as starting material for a new type of nitrogen-containing phosphorus compounds. The structures of isolated betaines were proved by the XRD and the 19F, 31P1H} and 13C1H} NMR data.
2-X-三氟-1,4-苯醌(X = F,Cl,Me,OMe)与三苯基膦在各种溶剂(C 6 H 6,Et 2 O,THF,二恶烷,MeOH,二恶烷水溶液和Me 2 SO)已被调查。结果表明:(1)醌与PPh 3在氧原子和碳原子处反应,从而形成还原产物和三苯基膦酰基氟。(2)使用极性更大的溶剂,例如MeOH,二恶烷和我2SO导致磷阳极氟化的产物增加;(3)2-X-三氟-1,4-苯醌(X = Cl,Me,OMe)的三苯基磷酰基氟发生在位置5和6与X的比例取决于取代基X的性质。获得结果的可能原因详细讨论。在MeOH中观察到溶剂分子进入芴基的磷阳极氟化的产物中。三苯基(3,4,6,6-四氟-2-氧化-5-氧代环己-1,3-二烯-1-基)phosph及其类似物用作新型含氮磷化合物的原料。XRD和19 F,31 P 1 H}和13 C 1 H} NMR数据证明了分离的甜菜碱的结构。