107467-72-1Relevant academic research and scientific papers
PYRROLE STUDIES. PART 36. THE SYNTHESIS OF 2.2'-BIPYRROLES AND RELATED COMPOUNDS
Hinz, Werner,Jones, R. Alan,Patel, Sunil U.,Karatza, Mary-Helen
, p. 3753 - 3758 (1986)
Nucleophilic addition to but-1-en-3-one by the acyl anion equivalent of 2-formylpyrroles, generated by reaction with thiazolium salts, yields 1-(2-pyrrolyl)pent-1,4-diones, which undergo the Paal-Knorr reaction with ammonia and primary amines to give the 2,2'-bipyrroles.Alternatively, the 2,2'-bipyrrole system can be obtained by pyrolysis of 2-azido-5-(2-pyrrolyl)penta-2,4-dienoic esters.
