01090nas a2200169 4500008004100000022001400041245013400055210006900189260010600258300001400364490000700378520034500385100002100730700002000751700001900771856013000790 2011 eng d a0957-416600aOrganocatalytic route to the synthesis of (6S)-5,6-dihydro-6-[(2R)-2-hydroxy-6-phenylhexyl]-2H-pyran-2-one and ravensara lactones0 aOrganocatalytic route to the synthesis of 6S56dihydro62R2hydroxy aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcOCT a1749-17560 v223 a
An organocatalytic enantioselective synthesis of the title compounds has been achieved. The stereogenic centers were generated by the iterative use of proline catalyzed alpha-aminoxylations and HWE olefination of aldehydes while the lactone ring was constructed by ring closing metathesis. (C) 2011 Elsevier Ltd. All rights reserved.
1 aDwivedi, Namrata1 aTripathi, Divya1 aKumar, Pradeep uhttp://library.ncl.res.in/content/organocatalytic-route-synthesis-6s-56-dihydro-6-2r-2-hydroxy-6-phenylhexyl-2h-pyran-2-one-0