@article{398, author = {J. Deli and E. Osz and J. Visy and Ferenc Zsila and Miklós Simonyi and G. Tóth}, title = {Stereoselective reduction of capsanthol-3 -ones (= 3,6 -dihydroxy-β,κ-caroten-3 -ones) by complex hydrides}, abstract = {The (3R.5 R.6 R)-and(3R,5 R.6 S)-capsanthol-3 -one (= 3.6 -dihydroxy-β-κ-caroten-3 -one: 4 and 5. resp.) were reduced by different complex metal hydrides containing organic ligands. The ratio of the thus obtained diastereoisomeric (3 S)-capsanthols 2 and 3 or (3 R)-capsanthols 6 and 7, respectively, was investigated. Four complex hydrides showed remarkable stereoselectivity and produced the (3 R,6 S)-capsanthol (6) in 80-100% (see Table 1). The starting materials and the products were characterized by UV/V1S, CD, 1H- and 13C-NMR, and mass spectra.}, year = {2001}, journal = {Helvetica Chimica Acta}, volume = {84}, pages = {263-270}, month = {2001}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0035115861&partnerID=40&md5=2c3c338feb6851130b8ded077a743827}, note = {Cited By :8Export Date: 25 February 2016}, }