A Formal Total Synthesis of (+)-Zincophorin. Observation of an Unusual Urea-Directed Stork−Crabtree Hydrogenation
摘要:
A formal total synthesis of (+)-zincophorin via interception of Miyashita's advanced intermediates is described here. This effort features the first synthetic application of an inverse demand hetero [4 + 2] cycloaddition of a chiral allenamide, and the observation of an unusual urea directed Stork-Crabtree hydrogenation.
A Formal Total Synthesis of (+)-Zincophorin. Observation of an Unusual Urea-Directed Stork−Crabtree Hydrogenation
摘要:
A formal total synthesis of (+)-zincophorin via interception of Miyashita's advanced intermediates is described here. This effort features the first synthetic application of an inverse demand hetero [4 + 2] cycloaddition of a chiral allenamide, and the observation of an unusual urea directed Stork-Crabtree hydrogenation.