2-(2-Bromoallyl)-1, 3-dicarbonyl compounds are converted into β-enamino, β-hydrazino esters and ketones, followed by base-promoted cyclization, leading to the formation of the corresponding 1, 2, 3, 5-tetrasubstituted pyrroles. 1, 2, 4-and 1, 2, 3, 4-Substituted pyrroles are also isolated as minor products. Starting from the 2-(2-bromoallyl)-cyclohexane-1, 3- dione the corresponding tetrahydro indolone is prepared in good yield.
