Table 4.

Catechol effect on enantioselectivity in the one-pot, two-step Michael/Stetter reaction

					ee, %
Entry	7	Additive	4	Yield, %	W/o additive	W/additive
1	7a	14a	4b	63	89	93
2	7f	14a	4b	78	85	90
3	7h	14a	4b	75	85	93
4	7a	14b	4b	63	89	95
5	7a	14b	ent-4b	73	−89	−89
6	7a	14c (1 equiv)	4b	60	89	89