Helvetica Chimica Acta p. 3473 - 3477 (2002)
Update date:2022-08-05
Topics:
Noda, Yoshihiro
Watanabe, Morio
An efficient enantiospecific synthesis of the (R)- and (S)-enantiomers of flavanone and 2-methylchromanone is described. The key steps are a C,C-bond formation by ring opening of a chiral epoxide with a dithiane anion, followed by a Mitsunobu cyclization. The products obtained have high enantiomeric purity.
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