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Towards the synthesis of chiral isochromanquinones. The use of Corey–Bakshi–Shibata reductions
Journal article   Peer reviewed

Towards the synthesis of chiral isochromanquinones. The use of Corey–Bakshi–Shibata reductions

C.B. de Koning, R.G.F. Giles, I.R. Green and N.M. Jahed
Tetrahedron Letters, Vol.43(23), pp.4199-4201
2002
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Abstract

(1R,3R,4S)-3,4-Dihydro-4-hydroxy-6-methoxy-1,3-dimethylisochroman-5,8-dione has been synthesized in 65% ee from (1R,3R,4S)-5-benzyloxy-3,4-dihydro-4-hydroxy-6-methoxy-1,3-dimethylisochroman by catalytic hydrogenolysis followed by Fremy's salt oxidation of the derived phenol. The latter isochroman was synthesized from a mercury(II) mediated oxidative cyclization of (R)-3-benzyloxy-4-methoxy-1-(1′-hydroxyethyl)-2-prop-1′-enylbenzene which in turn was obtained in 75% ee from the chiral reduction of 1-acetyl-3-benzyloxy-4-methoxy-2-prop-1′-enylbenzene with borane–methylsulfide complex in the presence of the Corey–Bakshi–Shibata catalyst.

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Collaboration types
Domestic collaboration
International collaboration
Citation topics
1 Clinical & Life Sciences
1.219 Cancer Drugs
1.219.1527 Naphthoquinone Derivatives
Web Of Science research areas
Chemistry, Organic
ESI research areas
Chemistry
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