Enantiocontrolled Formal Total Synthesis of Paeonilactone A and B from (S)-(+)-Carvone.
摘要:
A synthesis of enantiomerically pure lactone 11a from commercially available (S)-(+)-carvone has been developed. The synthesis constitutes a formal synthesis of paeonilactone A and B and involves a stereoselective palladium-catalyzed 1,4-oxylactonization of a conjugated diene to introduce two of the oxygen substituents required for the target.
Enantiocontrolled Formal Total Synthesis of Paeonilactone A and B from (S)-(+)-Carvone.
摘要:
A synthesis of enantiomerically pure lactone 11a from commercially available (S)-(+)-carvone has been developed. The synthesis constitutes a formal synthesis of paeonilactone A and B and involves a stereoselective palladium-catalyzed 1,4-oxylactonization of a conjugated diene to introduce two of the oxygen substituents required for the target.
Chemoenzymatic preparation of the p-menth-1,5-dien-9-ol stereoisomers and their use in the enantiospecific synthesis of natural p-menthane monoterpenes
作者:Stefano Serra、Igor Nobile
DOI:10.1016/j.tetasy.2011.07.014
日期:2011.7
alcohols gave the isomeric forms of the terpenes dill and epi-dillether, which were hydrogenated diastereoselectively to the corresponding (1R)- or (1S)-derivatives depending on the catalyst used. The oxidation of the latter ethers turned out to be stereoselective, affording either the corresponding p-menthan-9-oic lactone or the keto-acid derivatives depending on the starting isomer used.
Alder; Schumacher, Chemische Berichte, 1956, vol. 89, p. 2485,2493
作者:Alder、Schumacher
DOI:——
日期:——
Enantiocontrolled Formal Total Synthesis of Paeonilactone A and B from (S)-(+)-Carvone.
作者:Magnus Rönn、Pher G. Andersson、Jan-E. Bäckvall、Olle Matsson、Jadwiga Trocha-Grimshaw、Ole Hammerich、Inger Søtofte、Bengt Långström
DOI:10.3891/acta.chem.scand.52-0524
日期:——
A synthesis of enantiomerically pure lactone 11a from commercially available (S)-(+)-carvone has been developed. The synthesis constitutes a formal synthesis of paeonilactone A and B and involves a stereoselective palladium-catalyzed 1,4-oxylactonization of a conjugated diene to introduce two of the oxygen substituents required for the target.