167782-17-4Relevant academic research and scientific papers
Convergent total synthesis of epolactaene: Application of bridgehead oxiranyl anion strategy
Kuramochi, Kouji,Nagata, Seigo,Itaya, Hideyoshi,Takao, Ken-Ichi,Kobayashi, Susumu
, p. 7371 - 7374 (1999)
Total synthesis of (+)-epolactaene was accomplished by a convergent approach utilizing the fluoride anion-catalyzed aldol-type reaction of (-)-α-trimethylsilylangelica lactone epoxide with tetraene aldehyde as a key reaction.
A convergent total synthesis of epolactaene: An application of the bridgehead oxiranyl anion strategy
Kuramochi, Kouji,Nagata, Seigo,Itaya, Hideyoshi,Matsubara, Yasuaki,Sunoki, Takashi,Uchiro, Hiromi,Takao, Ken-Ichi,Kobayashi, Susumu
, p. 9743 - 9758 (2003)
The generation and reaction of a lactone-derived oxiranyl anion is described. The aldol-type reaction of the epoxylactone and aldehydes was accomplished by a two-step procedure via the trimethylsilyl epoxylactone. The application of this methodology to th
Diastereoselective total synthesis of both enantiomers of epolactaene
Hayashi, Yujiro,Kanayama, Jun,Yamaguchi, Junichiro,Shoji, Mitsuru
, p. 9443 - 9448 (2007/10/03)
A stereocontrolled total synthesis of both the (+)- and (-)-epolactaene ((+)- and (-)-1) enantiomers from tetrahydropyran-2-ol is described. The following reactions in this synthesis are particularly noteworthy: (1) the stereoselective construction of the conjugated (E,E,E)-triene by a combination of kinetic deprotonation and thermodynamic equilibration, (2) the E-selective Knoevenagel condensation of β-ketonitrile 33 with a chiral 2-alkoxyaldehyde, (3) a diastereoselective epoxidation achieved using a bulky nucleophile (TrOOLi) and an appropriate protecting group, (4) the mild hydrolysis of an α-epoxy nitrile by silica gel on TLC facilitated by hydroxyl-mediated, intramolecular assistance.
Asymmetric total synthesis of epolactaene. Part 2: Introduction of the side chain and synthesis of (+)-epolactaene and its enantiomer
Marumoto, Shinji,Kogen, Hiroshi,Naruto, Shunji
, p. 7145 - 7156 (2007/10/03)
A total synthesis of the novel neuritogenic agent (+)-epolactaene ((+)- 1) has been achieved via a convergent route that utilized epoxyamide 8, C7- C11 fragment 7, and C1-C6 Wittig reagent derived from phosphonium salt 19 followed by cyclization to form t
Asymmetric total synthesis of epolactaene
Hayashi, Yujiro,Narasaka, Koichi
, p. 313 - 314 (2007/10/03)
The first asymmetric total synthesis of epolactaene, a neuritogenic compound, was accomplished in 16 steps and its absolute stereochemistry was determined.
