237736-41-3Relevant academic research and scientific papers
Asymmetric allylic oxidation of bridged-bicyclic alkenes using a copper-catalysed symmetrising-desymmetrising Kharasch-Sosnovsky reaction
Clark, J. Stephen,Clarke, Melanie-Rose,Clough, John,Blake, Alexander J.,Wilson, Claire
, p. 9447 - 9450 (2007/10/03)
Enantioselective symmetrising-desymmetrising allylic oxidation of racemic bridged bicyclic alkenes using an asymmetric copper-catalysed Kharasch-Sosnovsky reaction has been explored. Good yields and reasonable levels of induction (up to 70% ee) have been
Diastereodivergent synthesis of the C9-cyclopentanone chiral building blocks
Nagata,Kawamura,Ogasawara
, p. 1825 - 1834 (2007/10/03)
Diastereodivergent synthesis the C9-cyclopentanone chiral building block, serving as the non-tryptamine moiety of the Corynanthe type indole alkaloids and the related natural products, and its diastereomer has been developed from racemic norcamphor by employing lipase-mediated resolution via an allylic acetate intermediate having a bicyclo[3.2.1]octane framework. A potential of the latter diastereomer has been demonstrated by its conversion into (-)-semburin, a monoterpene isolated from Swertia japonica previously and obtained from the C9-block.
A lipase-mediated route to (+)-juvabione and (+)-epijuvabione from racemic norcamphor
Nagata, Hiroshi,Taniguchi, Takahiko,Kawamura, Mitsuhiro,Ogasawara, Kunio
, p. 4207 - 4210 (2007/10/03)
(+)-Juvabione and (+)-epijuvabione, natural sesquiterpenes exhibiting insect juvenile hormone activity, have been synthesized from (±)-norcamphor via the both enantiomeric intermediates having bicyclo[3.2.1]octane framework by employing a lipase-mediated kinetic ester-hydrolysis reaction and cyclopropane ring-expansion reaction as the key steps.
Concurrent resolution and oxidation of an allylic acetate and its utilization in the diastereocontrolled synthesis of some cyclopentanoid monoterpenes
Nagata, Hiroshi,Ogasawara, Kunio
, p. 6617 - 6620 (2007/10/03)
Racemic endo-4-acetoxybicyclo[3.2.1]oct-2-ene furnishes enantiopure (+)- bicyclo[3.2.1] oct-3-en-2-one and its dihydro derivative leaving enantiopure (+)-endo-4-acetoxybicyclo[3.2.1]oct-2-ene in a phosphate buffer solution in the presence of a lipase (Can
