Abstract
Rhodium- catalysed reactions of ( arylpropargyl ) arnines with CO/H2 give P- arylpyrroles in good yields. Reactions of ( alkylpropargyl )amines gave alkylpyrroles together with butenolides which are formed in an unusual reaction that probably involves double carbonylation, reduction of one carbonyl function and removal of the amine function by hydrogenolysis. The single-crystal X-ray structure of 5-methyl-N,3-diphenylpyrrole-2-carboxamid is recorded.
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