<i>Michael</i>Reactions of α-Unsubstituted Trisubstituted 1<i>H</i>-Pyrroles
作者:Rainer Lüönd、Reinhard Neier
DOI:10.1002/hlca.19910740111
日期:1991.1.30
To obtain stable derivatives of α-unsubstituted pyrroles, the reaction of the test pyrrole 9 with a series of chalcones 14a–h were studied. Michael adducts 16b–h could be isolated. In order to synthesize coloured derivatives, the reaction of different pyrroles 9, 21, 23, and 25 with diphenylpropynone 19 was investigated. In these cases, too, Michael-addition products were formed. The intense absorption