Rpc. Cousins et al., 1,5-ASYMMETRIC INDUCTIONS IN THE REACTIONS OF TRA-O-ACETYL-BETA-D-GLUCOPYRANOSYLOXY)BENZALDEHYDE WITH DANISHEFSKYS DIENE, Tetrahedron letters, 36(47), 1995, pp. 8689-8692
The title compounds react to give mainly a 9:1 mixture of the aldols 1
4 and 15 in THF in the presence of BF3.0Et(2). a 6:1 mixture of the cy
cloadducts 16 and 17 in THF in the presence of ZnCl2, and a 1:3 mixtur
e of the cycloadducts 16 and 17 in toluene in the presence of Eu(fod)(
3).