Crossed Tishchenko reaction catalyzed by complex 31^a,e.

S. no.	RCHO	R′CHO	Yield (%)
1b	Ph	1-Naphthyl	17	16	62	4
2c	Ph	1-Naphthyl	—	—	95	—
3b	Ph	2-Pyridyl	3	6	80	10
4c	Ph	2-Pyridyl	—	—	100	—
5c	Ph	Cyclohexyl	27	46	—	26
6d	Ph	Cyclohexyl	20	35	—	40
7b	Ph	Isopropyl	18	55	6	25
8d	Ph	Isopropyl	46	28	11	15
9c	Ph	Isopropyl		77	—	23

^aReaction conditions: catalyst 31/RCHO = 1 : 100, RT, 1.5 h, 0.5 mL of C₆D₆.

^bRCHO : R′CHO = 1 : 1.

^cRCHO : R′CHO = 1 : 1.5.

^dRCHO : R′CHO = 1.5 : 1.

^eAnalysis done by ¹H spectroscopy.