New Avenues for the Synthesis of Oxa‐Cycles Using Lewis/Brønsted Acid Mediated Carboxygenation and Carboalkoxylation of Alkynes
Santosh Kumar Nanda,
Laxmi Narayan Nanda,
Juhi Pal
et al.
Abstract:The cascade functionalizations of alkynes have provided many elegant methods for the synthesis of useful scaffolds. Amongst these functionalizations, the ones comprising C‐C and C‐O bond formation have been utilized extensively due to the abundant presence of oxygenated motifs in various bio‐active natural as well as unnatural products. Transition‐metal catalysis is a mainstay for these tandem functionalizations as they are very efficient. However, their utilization does typically involve stoichiometric additi… Show more
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