![DABCO Mediated Sulfur Activation‐Intramolecular De‐Nitration Strategy for the Synthesis of Novel Dihydrothiochromeno[4,3‐c]pyrazoles](https://onlinelibrary.wiley.com/cms/asset/7b392b70-c5cf-4cae-b072-a40121e1b064/ajoc202300289-toc-0001-m.png)
An efficient metal-free approach has been unfolded for the synthesis of novel dihydrothiochromeno[4,3-c]pyrazoles using elemental sulfur as a powerful sulfurating reagent.
Abstract
A facile and highly efficient metal...
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Brønsted Acid–Catalyzed Tandem Reaction of 1,4‐Enediones with 2‐Naphthols: Synthesis of 2‐Furylmethylnaphthalenes
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A Brønsted acid-catalyzed tandem reaction of 1,4-enediones with aromatic nucleophiles was developed, affording a series of 2-furylmethylarenes in high yields (up to 98%). The attractive features of this reaction include mild reaction conditions, overall high yields, and water as the only byproduct.
Abstract
A Brønsted acid-catalyzed tandem cyclization/addition reaction of 1,4-enediones with 2-naphthols was developed, affording a series of 2-furylmethylnaphthalenes in high yields (up to 98%). Furthermore, the control experiments revealed the possible reaction pathway and activation mode, which will enrich the research on Brønsted acid catalysis and tandem reactions.
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