Table 7. SAR and SSR Studies of Hydrazone Ligands for the Coupling of 2-Methylnaphthylsilanolate (K⁺35a^–).

entry	ligand	time (h)	37a (%)	38b (%)	er, 37 (R/S)c
1	13a	2	81	2.0	6:94
2	13f	2	86	1.4	5:95
3	21a	4	70	3.5	40:60
4	21f	6	76	2.8	43:57
5	29	4	78	6.6	48:52
6	15	2d	∼21e	12.8	50:50
7	33a	2	84	3.0	19:81
8	33b	18	59f	9.0	68:32
9	34	24	34	8.8	52:48

^aYield of chromatographed product taking into account of 1,1′-binaphthalene.

^bPercentage of 1,1′-binaphthalene in the chromatographed product estimated by CSP-SFC.

^cRatio of (R)-37:(S)-37 determined by CSP-SFC.

^dReaction stalled.

^eContains a contaminant.

^f0.1 mmol scale.