Table 8.

Influence and used amounts of the selective catalyst poisons on the reaction progress of Suzuki–Miyaura reactions of 1-bromo-4-methylbenzene and phenylboronic acid carried out with 2 mol% Pd(OAc)₂–BOX–MPSG in toluene at 115 °C using K₂CO₃ as base. Poisons were added after 2 h.

Poison	Mol equiv. to Pd	Conversion after 2 h (%)	Conversion after 24 h (%)
No	–	43	96
PVPy	100	43	88
Pyridine	340	42	93
MPSG	40	45	45
MPSG	400	45	42
MPTMOS	40	46	50
NH2-prop-SG	40	43	44
Quadrupure TU	45	42	44