Table 2.

Screening of reaction conditions for the methanol addition to α-methylstyrene (13a).^a

entry	13a [mM]	catalyst	mol %	additive	solvent	yield
1	84.6	2	5	NEt3b	MeOH	31%
4	84.6	2	5	–	MeOH	84%
5	42.3	2	10	–	MeOH	quant.
6	42,3	2	10	–	MeOH	–c
7	42.3	2	10	–	MeOH	–d
8	42.3	–	–	NEt3	MeOH	–d
9	42.3	2	10	–	MeOD	78%e
11	170	2	10	–	MeOD	quant.e
12	170	10	10	–	MeOH	quant.e
13	170	11	10	–	MeOH	quant.e

^aConditions: 30 °C, 65 h, 365 nm LEDs. ^b10 equiv. ^cNo light. ^dNo catalyst. ^e20 h.