HCID 86693077, compound → HCID 86693076, compound

Participants

Reaction Conditions

Reaction Steps

Into a 3000-mL 4-necked round-bottom flask purged and maintained with an inert atmosphere of nitrogen was placed a solution of 9-bromo-10-fluoro-3,4-diiodo-2,5-diazatetracyclo[11.1.1.0[2,6]. 0[7,12]]pentadeca-3,5,7,9,11-pentaene (252 g, 462.45 mmol, 1.00 equiv) in tetrahydrofuran (2000 mL), followed by the addition of EtMgBr (163 mL, 1.05 equiv, 3 M) dropwise with stirring at −40° C. over 30 min. The resulting solution was stirred at −40° C. for 30 min, quenched by the addition of 200 mL of NH4Cl (sat) and extracted with 2×1000 mL of ethyl acetate. The organic layers were combined, washed with 1×1000 mL of water and 1×1000 mL of brine, dried over anhydrous sodium sulfate and concentrated under vacuum to afford 173 g (89%) of 9-bromo-10-fluoro-4-iodo-2,5-diazatetracyclo[11.1.1.0[2,6].0[7,12]]pentadeca-3,5,7,9,11-pentaene as a red solid.

Provenance & Evidence