Table 1 Screening of reaction conditions for Ni-catalyzed cross-coupling polycondensation between Grignard reagent 1a and 2,6-dimethoxynaphthalene 2a

From: Cross-coupling polycondensation via C–O or C–N bond cleavage

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  1. a For all reactions, THF in the solution of 1a was removed under vacuum at 0 °C before adding the indicated solvent
  2. b Yields were calculated after isolation (precipitation in MeOH)
  3. c The products showed little or no precipitation in MeOH
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