197857-42-4Relevant articles and documents
On the Reaction between Alkyl Isocyanides and 3-Benzylidene-2,4-pentanedione. A Convenient Synthetic Route to Densely Functionalized Furans
Yavari,Shaabani,Maghsoodlou
, p. 697 - 700 (1997)
Alkyl isocyanides undergo a formal (1 + 4] cycloaddition reaction with 3-benzylidene-2,4-pentanedione yielding multiply functionalized furan ring systems in fairly high yields. The 1H NMR spectrum of 4-acetyl -2-(N-benzylamino)-5-methyl-3-pnenylfuran shows an AB pattern for the benzylic methylene protons as a result of a restricted rotation about the bond between the acetyl group and the furan ring, thus giving rise to perpendicular disymmetric planes.