P Ravichandiran, B Lai, Y Gu - The Chemical Record, 2017 - Wiley Online Library
Compounds containing oxygen, nitrogen, or sulfur atoms inside the rings are attracting much attention and interest due to their biological importance. In recent years, several methods for …
M Kim, Y Jung, I Kim - The Journal of Organic Chemistry, 2013 - ACS Publications
A highly efficient [4+ 2] annulation route to polysubstituted indolizines is described employing a domino Knoevenagel condensation/intramolecular aldol cyclization process as …
SA Halim, MA Ibrahim - Journal of Molecular Structure, 2017 - Elsevier
New derivative of heteroannulated chromone identified as 5-methyl-8 H-benzo [h] chromeno [2, 3-b][1, 6] naphthyridine-6 (5H), 8-dione (5, MBCND) was easily and efficiently …
H Li, J Xin, Y Xue, C Wang - The Journal of Organic Chemistry, 2022 - ACS Publications
A pseudo-three-component annulation reaction of substituted 2-amino-4 H-chromen-4-ones with aromatic aldehydes promoted by DBU was investigated to access polysubstituted 5 H …
R Poddar, A Jain, M Kidwai - Journal of Advanced Research, 2017 - Elsevier
Under the green chemistry perspective, bis [(l) prolinate-N, O] Zn (also called zinc–proline or Zn [(l)-pro] 2) has proven its competence as a promising alternative in a plethora of …
X Tan, Y Liang, F Bao, H Wang, Y Pan - Tetrahedron, 2014 - Elsevier
A new silver-mediated highly selective C–H functionalization of 2-alkylazaarenes with internal and terminal alkynes for the creation of substituted indolizines in one-pot has been …
M Wang, D Cheng, Y Pu, X Xu - Tetrahedron Letters, 2021 - Elsevier
A DDQ-mediated tandem annulation of 2-aminochromones with 1, 3-diarylpropenes is disclosed, which provides the azaxanthones in moderate to good yields. The oxidative …
MA Ibrahim, NM El‐Gohary… - Journal of Heterocyclic …, 2016 - Wiley Online Library
New series of heteroannulated chromeno [2, 3‐b] pyridines were easily and efficiently synthesized from DBU‐catalyzed condensation of 2‐amino‐6‐methylchromone‐3 …
Résumé A novel, greener approach was adopted for the synthesis of 3, 4-dihydropyrimidin-2 (1H)-one derivatives (4a–i) using bis [(L) prolinato-N, O] Zn as an inexpensive, efficient and …