A three-component reaction of arylamines, dialkyl acetylenedicarboxylates and phenacyl bromide in the presence of triphenylphosphine and triethylamine provides an efficient route for the synthesis of N-substituted 2,5-dihydropyrrole derivatives in good yields.

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An efficient and green protocol for the synthesis of pyrazolo[1,2-a][1,2,4]triazole-1,3-diones derivatives by one pot, three component coupling reaction of aromatic aldehyde, malononitrile, and 4-phenylurazole has been developed using ZrO 2 nanoparticles (NPs) as the catalyst. The procedure is formed in high yields, short reaction time and an environmentally friendly specificity.

A Facile Route to the Synthesis of 2,5-Dihydropyrrole Derivatives. -(ANARAKI-ARDAKANI*, H.; HASSANABADI, A.; FAZILNIA, A.; TABARZAD, A.; HEIDARI-RAKATI, T.; J. Chem. Res. 38 (2014) 1, 9-11, http://dx.doi.org/10.3184/174751914X13857417418426 ; Dep. Chem., Islamic Azad Univ., Mahshahr, Iran; Eng.) -F. Schill