Table 1.

Multicomponent catalytic reactions with β-alkenylaluminum reagents.^[a]

Entry		ECA conv. [%][b]	Prod.	Carbomet./acyl. yield [%];[c] ECA yield [%][d]	e.r.[e]
1		>98	3b	40; 75	98:2
2		>98	3c	63; 60	96:4
3		>98	3d	80; 60	96.5:3.5
4		>98	3e	80; 72	98:2
5		>98	3 f	80; 60	98:2
6		>98	3g	80; 54	96.5:3.5
7		>98	3h	61; 51	97:3
8		>98	3i	80; 55	90.5:9.5
9		>98	3j	80; 60	94.5:5.5

^[a]Reactions were performed under N₂ atmosphere; enones generated with >98% E selectivity in all cases.

^[b]Determined by analysis of 400 MHz ¹H NMR spectra of unpurified mixtures (±2%).

^[c]Yield of isolated and purified products (±5%).

^[d]Determined by HPLC analysis; see the Supporting Information for details.

^[e]NHC-Ag complex 1b was used as catalyst precursor.