Asymmetric Total Synthesis and Determination of the Absolute Configuration of (+)-Srilankenyne via Sequence-Sensitive Halogenations Guided by Conformational Analysis
作者:Hongjun Jang、Soo Yeon Kwak、Dongjoo Lee、Juan V. Alegre-Requena、Hyoungsu Kim、Robert S. Paton、Deukjoon Kim
DOI:10.1021/acs.orglett.0c04303
日期:2021.2.19
This first asymmetric totalsynthesis of (+)-srilankenyne (1), a halogenated C15 tetrahydropyran acetogenin isolated from Aplysia oculifera, features a sequence-sensitive process guided by conformationalanalysis to solve the challenging problem of introducing halogens. A competing semipinacol rearrangement during the installation of C(12)-bromide was suppressed by our A1,3 strain-controlled bromination
Stereodivergent Construction of Cyclic Ethers by a Regioselective and Enantiospecific Rhodium-Catalyzed Allylic Etherification: Total Synthesis of Gaur Acid
作者:P. Andrew Evans、David K. Leahy、William J. Andrews、Daisuke Uraguchi