Macrocyclization of Oxetane Building Blocks with Diazocarbonyl Derivatives under Rhodium(II) Catalysis
作者:Diane Rix、Rafael Ballesteros-Garrido、Walid Zeghida、Céline Besnard、Jérôme Lacour
DOI:10.1002/anie.201102152
日期:2011.8.1
reaction proceeds to afford a rare type of 15‐membered polyether macrocycle in up to 84 % yield (R1=alkyl, alkoxy, O‐allyl, OCH2CH2Ph; R2=alkyl, Ph; R3=H, Me, Et). This nontemplated macrocyclization is performed in a single pot under high concentration and precludes the usual polymerization.
高度浓缩:标题反应继续进行,提供了罕见类型的15元聚醚大环化合物,产率高达84%(R 1 =烷基,烷氧基,O-烯丙基,OCH 2 CH 2 Ph; R 2 =烷基,Ph; R 3 = H,Me,Et)。这种非模板的大环化反应是在高浓度下在一个罐中进行的,因此无法进行常规聚合反应。