[Pd(NCOC2H4CO)(PPh3)2Br] 1. Significantly, these reactions do not require the use of hexamethylphosphoramide (HMPA) as the solvent, or additional ligands, such as trifurylphosphine or triphenylarsine. Selectivity for benzyl bromide over bromobenzene is observed for precatalyst 1, against the precatalysts, bromobis(triphenylphosphine)(benzyl)palladium(II) and bis(triphenylphosphine)palladium(II) bromide.
使用预催化剂[Pd(NCOC 2 H 4 CO)(PPh 3)2 Br] 1可以使烯丙基和苄基
溴与
有机锡烷交联。重要的是,这些反应不需要使用六甲基
磷酰胺(HMPA)作为溶剂,也不需要使用其他
配体,例如三糠基膦或三苯基ar。对于预催化剂1,观察到苄基
溴对
溴苯的选择性相对于预催化剂
溴双(
三苯基膦)(苄基)
钯(II)和双(
三苯基膦)
钯(II)。