Asymmetric addition to chiral naphthalenes 5. An approach to the chlorothricolide system
作者:Gregory P. Roth、Christopher D. Rithner、A.I. Meyers
DOI:10.1016/s0040-4020(01)89161-4
日期:——
The asymmetric synthesis of several analogs of the so-called bottom half of chlorothricolide has been accomplished. The key reaction involves addition of a pentenyl lithium to the chiral naphtyl oxazoline 2 followed by methyl iodide quench to afford the quaternary tetralin system 3. Further elaboration and Birch reduction gave the hexahydro- naphthalene 9 which readily transformed into the bottom-half