NaHCO3 liquid/liquid biphase workups. The coproduct from the latter, 4,4′-IC6H4C6H4I, is insoluble in common organic solvents, allowing separation by liquid/solid phase workups (91−89% recoveries). The effect of the structure of the iodine(III) dichloride upon reactivity is analyzed in detail. The fluorous systems with Rf8 substituents are generally superior, but 16 is more reactive and gives higher selectivities
式(R fn(CH 2)3)2 C 6 H 3 ICl 2的
氟代芳基和烷基
碘(III)二
氯化物(R fn = CF 3(CF 2)n-1;对于3,5- n = 8二取代的和ñ = 6,8,10为2,4-二取代的)和R FN CH 2 ICl的2(ñ = 8,10)以71-98%的产率经Cl的反应制备2和相应的
氟碘化物。这些是将环
辛烯转化为反式的有效试剂-1,2-二
氯环
辛烯,
茴香醚到4-
氯和2-
氯茴香醚,
4-叔丁基苯酚到2-
氯-
4-叔丁基苯酚,PhCOCH 2
COPh到PhCOCHCl
COPh,PhCOCH 3到PhCOCH 2 Cl和PhCOCHCl 2(CH 3 CN,室温至40°C,100-64%转化率)。
氯化产物和
氟碘化物副产物很容易通过有机/
氟液/液双相后处理分离。后者以97-90%的产率获得,并用Cl 2再氧化。用3-Cl 2 IC 6 H 4 COOH(16)和4,4'-Cl