Table 1 Proportions of DP/MP in the Suzuki–Miyaura coupling reaction of 1 with 3 in the presence of 4a

From: Intramolecular catalyst transfer on silylene group between benzene rings in Suzuki–Miyaura coupling reaction: synthesis of σ−π conjugated cyclic polymers

Entry

R1 in 1

R2 in 1

Yield of DP and MP [%]b

Product ratio DP/MPc

1

Ph

Me

72

100/0

2

Et

Et

88

100/0

  1. aThe reaction of 2.0 equivalents of 1 with 1.0 equivalent of 3 was carried out in the presence of 5 mol % of 4, CsF (4.0 equivalents), and 18-crown-6 (6.7 equivalents) in THF ([3]0 = 25 mM) and water (THF/water = 3.0/0.1 (v/v)) at room temperature for 3 h
  2. bThe yield was based on 3
  3. cThe yield was determined from the 1H NMR spectra
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