COc1cc(OC)cc(OC)c1>C1=CCCC=CCC1.C1=CCCC=CCC1.CC1(C)OB(B2OC(C)(C)C(C)(C)O2)OC1(C)C.COC1CCCC1.C[OH2+].C[OH2+].[Ir].[Ir].c1ccc(N2B(B3Nc4ccccc4N3c3ccccn3)Nc3ccccc32)nc1>COc1cc(OC)c(B2OC(C)(C)C(C)(C)O2)c(OC)c1The general procedure A was followed using 1,3,5-trimethoxybenzene (84.1 mg, 0.5 mmol) and B2pin2 (126.9 mg, 0.5 mmol, 1.0 eq.) as starting material. The resulting mixture was allowed to stir 24 hours at 150 oC. The 1H NMR conversion was 21%. 5af was obtained as white solid (30.1 mg, 20%) after purification by silica gel flash chromatography (EtOAc/PE=1:20 v/v). m.p.: 114-116 oC.
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