One-pot synthesis of highly functionalized pyrano[2,3-c]pyrazole-4,4′-diacetate and 6-oxo-pyrano[2,3-c]pyrazole derivatives catalyzed by urea

One-pot synthesis of highly functionalized pyrano[2,3-c]pyrazole-4,4′-diacetate and 6-oxo-pyrano[2,3-c]pyrazole derivatives catalyzed by urea

Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron - Volume 73, Issue 2, 12 January 2017, Pages 164-171

Wenbo Li, Reyhangul Ruzi, Keyume Ablajan, Zulpiya Ghalipt,