165523-61-5Relevant articles and documents
Synthesis and Enantiodifferentiation of Isomeric 2,3,5,6,8,8a-Hexahydro-2,5,5,8a-tetramethyl-7H-1-benzopyran-7-ones(3,4-Dihydro-3-oxoedulans)
Schmidt, Gertraut,Neugebauer, Wolfgang,Winterhalter, Peter,Schreier, Peter
, p. 1898 - 1902 (1995)
The benzopyran derivatives 1a-d were prepared in a biomimetic type reaction from their presumed natural precursor 3-oxo-retro-α-ionol, which was available from α-ionone by tert-butyl chromate oxidation, reduction with NaBH4, and subsequent rearrangement o