Total Syntheses and Absolute Configuration Assignment of (+)-Sootepdienone, (−)-Jambolanin C, (−)-Jambolanin I, and (−)<i>-</i>Gibberodione
作者:Kevin Ng、Michael Khoury、Thomas Gerard Minehan
DOI:10.1021/acs.joc.0c02747
日期:2021.2.5
Total syntheses of the sesquiterpenes (+)-sootepdienone, (−)-jambolanin C, (−)-jambolanin I, and (−)-gibberodione have been accomplished in 10 steps each from R-(+)-pulegone, allowing assignment of the absoluteconfiguration of the natural products. A key step in the synthetic pathways involves the one-carbon ring expansion of a cyclic allylic phosphonate to a substituted cycloheptenone by a tandem
Terpenoid Synthesis via Palladium-Catalyzed Allylic Alkylation of Allylic Nitro Compounds
作者:Noboru Ono、Isami Hamamoto、Aritsune Kaji
DOI:10.1055/s-1985-31398
日期:——
Dimethyl (E,E)-3,7-dimethyl-2,6-decadienedioate and (E)-6,10-dimethyl-9-methylene-5-undecen-2-one(two natural products)are prepared starting from 2-methyl-3-nitropropene/ 2-methyl-1-nitropropene and butenone by convenient four- and five-step procedures, respectively.