Table 3.

Initial and final water concentrations for reactions in toluene.

	“Dry”	Sat.	0–2	2–7	7–12
water concentration of solvent [ppm]	250[a]	470[b]	–	–	–
water concentration of solvent + salt pair [ppm]	–	–	300[c]	370[c]	400[c]
initial water concentration of the reaction mixture [ppm]	460[d]	580[d]	40[e]	70[e]	180[e]
final water concentration of the reaction mixture [ppm][f]	8300	10 600	10 000	4400	5600

^[a]Measured for a sample of anhydrous solvent from Sigma–Aldrich.

^[b]Measured for a sample of water-saturated solvent.

^[c]In a separate experiment, the salt pairs were suspended in the anhydrous solvent and the system was stirred for 1 h before measuring the water concentration.

^[d]Measured after stirring the CLEA in the solvent for 1 h.

^[e]Measured after stirring the CLEA and the salt pair in the solvent for 1 h.

^[f]Measured for the reaction mixture after 24 h.