. 2007 Feb 8;3:5. doi: 10.1186/1860-5397-3-5

Table 1.

Condensation of substituted benzaldehydes with 5.

benzaldehyde substituent	product	diastereomeric ratio (cis/trans)^a	yield (DCM)^b	yield (CHCl₃)^c

H	7a	1 : 3	49	56
2-OMe	7b	1 : 1	51	58
3-OMe	7c	1 : 3	30	36
4-OMe	7d	1 : 5	48	60
2-OPiv	7e	1 : 3	48	62
3-OPiv	7f	1 : 5	42	44
4-OPiv	7g	1 : 3	47	58

^a: As deduced by analysis of ¹H NMR spectra or after CC separation ^b: reflux; ^c: 20°C.