Table 2.

AlCl₃/Al promoted‐carboxylation of benzene derivatives.

Reactant	T [°C]	Main product	Yield[a] [%]	Selectivity [% o/m/p]
26 a	70	27 a	88	–
26 b	40	27 b	47	1/1/98
26 c	60	27 c	45	3/2/95
26 d	70	27 d	69	7/3/90
26 e	40	27 e	92	–
26 f	20	27 f	80[b]	–

[a] Yields are based on the quantity of AlBr₃. [b] 68 h reaction time.