Zn(L-proline)2: An efficient and reusable organocatalyst for the synthesis of polyfunctionally substituted pyrans and 2-amino-4-aryl-8-oxo-4,8-dihydropyrano[3,2-b]pyran derivatives

JOURNAL ARTICLE published 30 June 2019 in European Journal of Chemistry

Authors: Fatma Ahmed Abo Elsoud | Mohamed Abd-Elmonem | Mohamed Abo Elsebaa | Kamal Usef Sadek