1227633-41-1Relevant articles and documents
Domino Knoevenagel-hetero-Diels-Alder reactions: a stereoselective synthesis of sugar-annulated furo[3,2-b] pyrano[4,3-d]pyran derivatives
Yadav,Reddy, B.V. Subba,Gopal, A.V. Hara,Rao, R. Nageshwar,Somaiah,Reddy, P. Purushotham,Kunwar
experimental part, p. 2305 - 2308 (2010/05/19)
The O-propargyl derivative of a sugar aldehyde derived from d-glucose undergoes smooth intramolecular domino Knoevenagel-hetero-Diels-Alder reactions with 1,3-diketones in the presence of CuI/Et3N system in refluxing methanol to afford a novel class of carbohydrate analogues, furopyranopyrans in good yields. 1-Aryl-pyrazol-5-ones also undergo smooth coupling with O-propargyl tethered sugar aldehyde under similar conditions to furnish pyrazole-annulated furopyranopyrans. The stereochemistry of the products was assigned by various NMR experiments.