Table 1.

Measured physicochemical parameters of anilines 5 a–5 c.

Entry	Parameter	5 a	5 b	5 c
1	K U/L [a]	1.86	0.49	0.24
2	pK a [b]	4.08±0.015	4.06±0.029	4.76±0.023

[a] The partition coefficients (K _U/L) were determined by GCMS measurements in the biphasic solvent system n‐Hex/MTBE/EtOH/H₂O (1:1:1:1, v/v); K _U/L=peak area of the compound in the upper phase divided by the peak area of the compound in the lower phase. [b] The pK _a values were determined by UV spectrophotometric titrations (see the Supporting Information).