Efficient Control for the Cationic Platinum(II)-Catalyzed Concise Synthesis of Two Types of Fused Carbocycles with Angular Oxygen Functionality
作者:Hiroyuki Kusama、Eiichi Watanabe、Kento Ishida、Nobuharu Iwasawa
DOI:10.1002/asia.201100460
日期:2011.9.5
Double trouble: An efficient method for the preparation of two types of synthetically useful bicyclo[5.4.0]undecanes with an angular oxygen functionality was realized starting from easily available substrates; this method was based on the [3+2] cycloaddition reaction of the platinum‐containing carbonyl ylide (see scheme; R1=alkyl or alkoxy, R2=alkyl, R3=alkyl or vinyl).
双重麻烦:从容易获得的底物开始,实现了一种有效的方法,用于制备两种类型的具有角氧官能度的合成有用的双环[5.4.0]十一烷。此方法基于含铂的羰基内酯的[3 + 2]环加成反应(请参阅示意图; R 1 =烷基或烷氧基,R 2 =烷基,R 3 =烷基或乙烯基)。