I did a reaction using 4-bromoaniline/BF3-Et2O/t-BuONO to make 1-bromo-4-
fluorobenzne. After the reaction, I had a hard time to distill out the
product (bp 150 oC) from the solvent (bp 180 oC). Does anyone have
experiences on this reaction work up? or maybe try other conditions? Any
comments would be appreciated? Thanks.