A palladium-catalyzed decarboxylative cyclopropanation of 2-alkylidenetrimethylene carbonates with isocyanates is described to form oxazolidinones of (1-aminocyclopropyl)methanols with high selectivity. The site of nucleophilic attack is directed by connecting the two reaction components and by employing an electron-deficient triarylphosphine ligand.
描述了一种以
铂催化的去羧基
环丙烷化反应,将2-烯丙基三氢氧化
碳酸酯与
异氰酸酯反应,形成高选择性的(1-
氨基环丙基)
甲醇的
噁唑烷酮。亲核攻击的位置通过连接这两个反应组分以及使用电子缺乏的三芳基
膦配体来引导。