Epoxides trans-2a and cis-2b also reacted smoothly
with PhCHO leading in good yields to products 3i,j and
3k,l (Table 3), respectively, although with poor diastereoselectivity
at the newly created stereogenic center: dr
anti/syn 3i,j 70/30, dr anti/syn 3k,l 60/40.
Epoxides trans-2a and cis-2b also reacted smoothlywith PhCHO leading in good yields to products 3i,j and3k,l (Table 3), respectively, although with poor diastereoselectivityat the newly created stereogenic center: dranti/syn 3i,j 70/30, dr anti/syn 3k,l 60/40.
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