Kinetics and Mechanism of Nanoparticles-Catalyzed Piperidinolysis of Anionic Phenyl Salicylate

Table 1

The values of , calculated from (1) for the piperidinolysis of under the variety of experimental conditions^a.

[]^b (mM)	10^−1 (M^−1 cm^−1)				CH3CN (%v/v)	10^−1 (M^−1 cm^−1)^e
	Na1^c	Na21^d	Na2^c	Na22^d
0	373 ± 2^f	369 ± 1^f	366 ± 2^f	3372 ± 1^f	2	175 ± 1^f
10	380 ± 2	379 ± 1	407 ± 3	386 ± 1	25	215 ± 1
15	356 ± 1	362 ± 1	341 ± 1	343 ± 1	50	250 ± 1
30	323 ± 1	330 ± 1	403 ± 8	395 ± 15	60	265 ± 2
50	286 ± 1	292 ± 2	457 ± 5	364 ± 6	70	288 ± 1
70	276 ± 2	275 ± 2	236 ± 1	250 ± 1	84	300 ± 3
100	251 ± 1	276 ± 1	240 ± 1	230 ± 4	90	367 ± 3
150	239 ± 1	257 ± 1	222 ± 1	227 ± 1	92	435 ± 3
200	230 ± 1	251 ± 1	222 ± 2	226 ± 1
300	219 ± 1	244 ± 1	221 ± 2	238 ± 2

3H ₀ = 0.2 mM, = 370 nm, 35°C, 30 mM NaOH, 100 mM Pip, and 15 mM CTABr. = and , = 1, 2. ^cNaOH/XH. ^dNaOH/XH = 2.50. ^eCalculated from (1) by the use of observed data ( versus reaction time ) obtained for the kinetic runs at 0.2 mM 3H, 10 mM NaOH, 100 mM Pip, 370 nm, and 35°C and within CH₃CN content range of 2–92%v/v in mixed aqueous solvents. ^fError limits are standard deviations.