Table 3.

Electrochemical synthesis of 12a using different additives.

Entrya	additive	yieldb [%]	c.e.c [%]	drd [12a:12b]
1	9	63	25	6.8
2	10	42	17	5.6
3	11	78	31	8.6
4	13	73	29	4.4

^aAnode: platinum; ^byield determined by GC (internal standard); ^cc.e. = current efficiency; ^dratio determined by NMR spectroscopy.