1212-62-0Relevant academic research and scientific papers
Utility of p-phenylenediformamidine in the synthesis of bisazoles and phenanthroline
Al-Mousawi, Saleh M.,Elassar, Abdel-Zaher A.
experimental part, p. 837 - 842 (2009/12/24)
(Chemical Equation Presented) p-Phenylenediformamidine 1 is readily obtained upon treating p-phenylenediamine with dimethylformamide dimethyl acetal (DMFDMA) by heating or by microwave irradiation. Compound 1 was treated with active methylene nitriles fol
A Versatile New Synthesis of Quinolines and Related Fused Pyridines. Part 5. The Synthesis of 2-Chloroquinoline-3-carbaldehydes
Meth-Cohn, Otto,Narine, Bramha,Tarnowski, Brian
, p. 1520 - 1530 (2007/10/02)
Acetanilides are converted into 2-chloroquinoline-3-carbaldehydes in good yield by the action of Vilsmeier's reagent in phosphoryl chloride solution.The reaction is shown to involve successive conversion of the acetanilide into an imidoyl chloride and then an N-(α-chlorovinyl)aniline.The latter enamine is diformylated at its β-position and subsequently cyclised to the chloroquinolinecarbaldehyde.The diformylated intermediates may be isolated in several cases and separately cyclised with polyphosphoric acid.
