trisubstituted相关论文
(Z)-α-Selanyl alkenyl Grignard reagents 2 were prepared conveniently by treatment of α-bromovinylselenides 1 with magnes......
对叔丁基硫杂杯[4]芳烃与氯乙酸乙酯在K2CO,/丙酮体系中反应,选择性地合成了三取代乙氧羰基甲氧基硫杂杯[4]芳烃,产率78%,其结构经^1HNMR......
Potassium α-and β-trivanadoenneatungstogermanates were prepared and characterized by means of elemental analysis, IR, ......
Preparation,CharacterizationandCatalyticActivityofAnionicClayPillaredbyGaW_9Zn_3ZHAHGJi-yu;ZHANGShu-yun;YUXin-wu;HUChang-wenL.........
Introduction Recently substituted-type of heteropolyanions has received much attention from the point of view of their c......