G. Fantin et al., MICROBIAL REDUCTION OF METHYL-SUBSTITUTED BICYCLO[3.2.0]HEPT-3-EN-6-ONES - A SCREENING TO HOMOCHIRAL ENDO-ALCOHOLS AND EXO-ALCOHOLS, Tetrahedron : asymmetry, 7(1), 1996, pp. 277-282
Various yeast and mould strains were tested in the microbial reduction
of methyl-substituted bicyclo[3.2.0]hept-3-en-6-ones 1a-c. The endo-a
lcohols 2a-c were obtained with good yields and enantiomeric excess, L
ower yields are described for the eno-alcohols 3a-e which are normally
enantiomerically pure. Comparisons with microbial reduction of bicycl
o[3.2.0]hept-2-en-6-one 1d and bicyclo[3.3.0]oct-7-en-2-one 1e are als
o reported.