Table 2.

Catalytic asymmetric ynamide addition to aldehydes.

Entry	Aldehyde	Product	Time (h)	Yield (%)	Ee (%)
1	81a	82a	18	97	93
2	81b	82b	16	92	95
3	81c	82c	18	85	93
4	81d	82d	18.5	87	88
5	81e	82e	13	92	71
6b	81f	82f	18	92	96
7	81g	82g	17	92	90
8	81h	82h	18	87	84
9	81i	82i	15	93	95
10	81j	82j	20	80	88
11	81k	82k	26	92	87
12	81l	82l	21	81	87
13b	81m	82m	15	89	90
14	81n	82n	13	87	95