Tandem Double-Intramolecular [4+2]/[3+2] Cycloadditions of Nitroalkenes. Studies toward a Total Synthesis of Daphnilactone B: Piperidine Ring Construction
作者:Scott E. Denmark、Ramil Y. Baiazitov
DOI:10.1021/jo052001l
日期:2006.1.1
Two model studies in support of a total synthesis of the complex polycyclic alkaloid daphnilactone B have been completed. The objectives of the models studies were to demonstrate the use of a tandem double-intramolecular [4+2]/[3+2] nitroalkene cycloaddition for the stereocontrolled construction of four of the rings in the core of the natural product. The first model study established the ability to