Table 4 Amount of phosphine ligands dispensed into reactions. These ligands are listed based on their electronic effect (vco) and tolman’s cone angle, used to screen reactions.

From: Application of statistical design of experiment to identify key factors in cross coupling reactions

Factors

Ligands

vco(cm–1)

θ

Amount

A & B

T1

+ 1

+ 1

0.0105 g/0.0523 g

A & B

T2

+ 1

–1

5.2 µL/26.21 µL

A & B

T3

–1

+ 1

0.0056 g/0.0280 g

A & B

T4

–1

–1

2.85 µL/14.22 µL