摘要
Acyclicmethylene acetals bearing two diazoester subunits have been converted to [5,5]-spiroacetals VIA bidirectional C-H insertion under Rh(II) catalysis. Using a chiral Rh(II) catalyst, the major diastereomer can be produced in high enantiomeric excess (89%).
- 出版日期2017-4-18