79950-84-8Relevant academic research and scientific papers
Lipase-catalyzed kinetic resolution of tetronic acid derivatives bearing a chiral quaternary carbon: total synthesis of (S)-(-)-vertinolide
Tauchi, Tetsuo,Sakuma, Hiroki,Ohno, Takahiro,Mase, Nobuyuki,Yoda, Hidemi,Takabe, Kunihiko
, p. 2195 - 2198 (2006)
We have developed a chemoenzymatic synthesis of (S)-vertinolide 1 with a chiral quaternary carbon atom at C5. In the kinetic resolution of tetronic acid precursor 6, lipase PS-D furnished the recovered alcohol 6 with an (R)-stereochemistry in a ratio of 95% ee, whereas lipase AY gave (S)-alcohol 6 with 93% ee. Chemical transformations of (S)-alcohol 6 provided (S)-vertinolide 1 in 33% yield in five steps with no loss of enantiomeric excess.
Enantioselective synthesis of (-)-vertinolide
Matsuo, Keizo,Sakaguchi, Yusuke
, p. 1620 - 1625 (1997)
(-)-Vertinolide, a β-tetronic acid derivative isolated from Verticillium intertextum as one of the mycotoxins, was synthesized starting from (R)-lactic acid as the chiral source by using Seebach's chiral self- reproduction method. The β-tetronic acid moiety was constructed by reductive dehydroxylation of α,β-dihydroxybutanolide with samarium(II) iodide and subsequent oxidation.
Synthesis of (-)-Vertinolide
Matsuo, Keizo,Sakaguchi, Yusuke
, p. 2553 - 2556 (2007/10/03)
(-)-Vertinolide, a β-tetronic acid deriative isolated from Verticillium intertextum as one of the mycotoxins, was synthesized starting from (R)-lactic acid as the chiral source using Seebach's chiral self-reproduction method.
New Approach to Chiral 5,5-Disubstituted Tetronic Acids. Enantioselective Synthesis of (-)-Vertinolide.
Desmaele, Didier
, p. 2925 - 2934 (2007/10/02)
A general protocol for enantioselective construction of tetronic acids bearing a stereogenic center at C-5 is described.The readily available Michael adduct 12, obtained by addition of methyl acrylate to imine 10 derived from 2-methyl-4,5-dihydrofuran-3-o
Synthesis of (S)-(-)-Vertinolide
Takaiwa, Akihiro,Yamashita, Kyohei
, p. 961 - 964 (2007/10/02)
(S)-(-)-Vertinolide 1 was synthesized via the tetronic acid derivative 6 form (S)-(-)-tetrahydro-2-methyl-5-oxo-2-furancarboxylic acid 3. (+/-)-Vertinolide was also synthesized from (+/-)-3.
