Alpha-氯乙酰苯置于potassium Carbonate体系中,用 5,5-Dimethyl-1,3-Cyclohexadiene 作为反应溶剂,以81%的收率获得产物联苯单乙酮
参考文献:Process For Preparing Biphenyls Using Palladacycles As Catalysts
标题:Process For Preparing Biphenyls Using Palladacycles As Catalysts
摘要:该发明涉及一种制备式(I)的联苯的方法##str1##其中r.Sup.1A至r.Sup.10A分别独立地是氢,C.Sub.1-C.Sub.12-烷基,C.Sub.1-C.Sub.12-烯基,C.Sub.1-C.Sub.12-炔基,烷氧基-(C.Sub.1-C.Sub.12),酰氧基-(C.Sub.1-C.Sub.12),O-苯基,芳基,杂芳基,氟,氯,羟基,硝基,氰基,羧基,醛基,磺酸基,磺酰基,磺氧基,氨基,氨基烷基-(C.Sub.1-C.Sub.12),N-烷基.Sub.2-(C.Sub.1-C.Sub.12),C-Hal.Sub.3,Nhco-烷基-(C.Sub.1-C.Sub.8),Conh-烷基-(C.Sub.1-C.Sub.4),Con-(烷基).Sub.2-(C.Sub.1-C.Sub.4),Coo-烷基-(C.Sub.1-C.Sub.12),Conh.Sub.2,Co-烷基-(C.Sub.1-C.Sub.12),Nhcoh,Nhcoo-烷基-(C.Sub.1-C.Sub.8),Co-苯基,Coo-苯基,Chchco.Sub.2-烷基-(C.Sub.1-C.Sub.12),Chchco.Sub.2 H,Po-苯基.Sub.2,Po-烷基.Sub2-(C.Sub.1-C.Sub.8),通过式(II)的卤代芳烃或芳基磺酸盐与式iii的芳基硼衍生物的反应##str2##其中r.Sup.1A至r.Sup.10A如上定义,X为溴,氯或oso.Sub.2 Cf.Sub.3,Oso.Sub.2-芳基,Oso.Sub.2-烷基,Y为b(Oh).Sub.2,B(O-烷基).Sub.2,B(O-芳基).Sub.2,其中式(Iv)的钯化合物##str4##其中r.Sup.1,R.Sup.2,R.Sup.3,R.Sup.4,R.Sup.5,R.Sup.6独立地是氢,(C.Sub.1-C.Sub.4)-烷基,(C.Sub.5-C.Sub.8)-环烷基,(C.Sub.1-C.Sub.4)-烷氧基,氟,Nh.Sub.2,Nh-烷基(C.Sub.1-C.Sub.4),N(烷基).Sub.2-(C.Sub.1-C.Sub.4),Co.Sub.2-烷基-(C.Sub.1-C.Sub.4),oco-烷基-(C.Sub.1-C.Sub.4)或苯基,或r.Sup.1和r.Sup.2,R.Sup.2和r.Sup.3,R.Sup.3和r.Sup.4,R.Sup.5和r.Sup.6一起形成脂肪族或芳香族环,R.Sup.7,R.Sup.8是(C.Sub.1-C.Sub.8)-烷基,(C.Sub.3-C.Sub.12)-环烷基,取代或未取代的芳基,Y是无机或有机酸的阴离子,用作催化剂.