Reaction of 1, 3-Diphenylisobenzofuran (111) with Thionylaniline (IV). A. In the Presence of Boron Trifluoride.-Boron trifluoride etherate (3.0 nil.) was added to a solution of furan I11 (1.00 g., 4.1 nimoles) and thionylanilhe7 (0.62 g., 4.4 nimoles) in benzene (50 nil.). After refluxing for 13 hr., the brown reaction solut. ion was washed well with water (two 150-id. lots), dried over magnesium sulfate, and evaporated. The dark residue was dissolved in ...
