69880-60-0Relevant academic research and scientific papers
A concise route for the synthesis of tetracyclic meroterpenoids: (±)-aureol preparation and mechanistic interpretation
Rosales Martínez, Antonio,Enríquez, Lourdes,Jaraíz, Martín,Pozo Morales, Laura,Rodríguez-García, Ignacio,Díaz Ojeda, Emilio
, (2020/09/18)
A new concise general methodology for the synthesis of different tetracyclic meroterpenoids is reported: (±)-aureol (1), the key intermediate of this general route. The synthesis of (±)-aureol (1) was achieved in seven steps (28% overall yield) from (±)-a
Synthesis of (±)-aureol by bioinspired rearrangements
Rosales, Antonio,Mu?oz-Bascón, Juan,Roldan-Molina, Esther,Rivas-Bascón, Nazaret,Padial, Natalia M.,Rodríguez-Maecker, Roman,Rodríguez-García, Ignacio,Oltra, J. Enrique
, p. 1866 - 1870 (2015/02/19)
A bioinspired and sustainable procedure for the straightforward synthesis of (±)-aureol has been achieved in eight steps (14% overall yield) from epoxyfarnesol. The key steps are the titanocene(III)-catalyzed radical cascade cyclization of an epoxyfarneso
Transition-metal-catalyzed allylic substitution and titanocene-catalyzed epoxypolyene cyclization as a powerful tool for the preparation of terpenoids
Gansaeuer, Andreas,Justicia, Jose,Rosales, Antonio,Worgull, Dennis,Rinker, Bjoern,Cuerva, Juan Manuel,Oltra, Juan Enrique
, p. 4115 - 4127 (2007/10/03)
Many biologically active substances are composed of sesquiterpene units linked to aromatic structures, especially substituted phenols. Here, we describe an efficient synthetic approach to this class of natural product from commercially available substances in a short sequence. The key transformations involve allylic substitution reactions using a palladium or copper catalyst and titanocene-catalyzed epoxypolyene cyclization reactions via radicals. The polycyclic core structures are accessed with high chemo- and stereocontrol. Wiley-VCH Verlag GmbH & Co. KGaA, 2006.
Total synthesis of yahazunol, zonarone and isozonarone
Laube, Thorsten,Schr?der, J?rg,Stehle, Ralf,Seifert, Karlheinz
, p. 4299 - 4309 (2007/10/03)
The synthesis of the marine natural products zonarone and isozonarone was achieved via (+)-albicanic acid, a sesquiterpene of the drimane type. Coupling of the appropiate drimane-synthon with lithiated hydroquinone ethers led to sesquiterpene arenes, which were further modified to the target molecules. Stereoselective epoxidation followed by regioselective opening of the oxirane ring yielded yahazunol.
Synthesis of decalin type chiral synthons based on enzymatic functionalisation and their application to the synthesis of (-)-ambrox and (+)-zonarol
Akita, Hiroyuki,Nozawa, Masako,Shimizu, Hiroyo
, p. 1789 - 1799 (2007/10/03)
Stereoselective syntheses of (-)-ambrox 2 and (+)-zonarol 3 were achieved based on the enzymatic syntheses of (8aS)- and (8aR)-decalin-type 1,3-diols 1, respectively. Non-racemic intermediates such as (8aS)-1 and (8aR)-1 were obtained based on the enantioselective hydrolyses of the phenolic acetal derivative (±)-7 by acylase I.
