Tetrahedron letters

Fourfold Heck reactions on the tetraphenylmethane tripod: Model studies towards construction of centrally based three dimensional networks

S Sengupta, SK Sadhukhan

文献索引：Sengupta, Saumitra; Sadhukhan, Subir Kumar Tetrahedron Letters, 1998 , vol. 39, # 10 p. 1237 - 1238

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被引用次数: 33

摘要

Pd(OAc) 2 (6 mg) was added to a solution of 1 (0.20 g, 0.26 mmol) and ethyl acrylate (0.21 g, 2.10 mmol) in EtOH (10 ml)-H 2 O (2 ml) and the solution heated under reflux for 1h. It was then filtered through celite, water (10 ml) added and extracted with CH 2 Cl 2 (3×10 ml). Removal of solvent followed by recrystallization from aqueous EtOH gave 2b (0.14 g, 75%) as a white solid: mp 188–190°C; IR (KBr) 2970, 1705, 1630, 1360, 1300, 1260, 1170, 1040 cm −1 ; 1 ...