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Browsing by Author "Babu, S A"

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Copper-Catalyzed Annulation of Electrophilic Benzannulated Heterocycles with 2-Aminopyridine and 2-Aminoquinoline: Direct Access toward Polyring-Fused Imidazo[1,2-a]pyridines

Babu, S A; Varsha, P V; Poulose, S; Varughese, S; John, J (ACS Publications, 2023-07-21)

We have developed a direct method for the synthesis of polyring-fused imidazo[1,2-a]pyridines via a coppercatalyzed annulation of electrophilic benzannulated heterocycles with 2-aminopyridine and 2-aminoquinoline. From ...
Discovery of Oxygen Induced Chemoselectivity in Pd-Catalyzed C–H Functionalization: Cross-Dehydrogenative Coupling vs C–H Amination

Babu, S A; Varughese, S; Mathew, J; John, J (ACS Publications, 2023-07-21)

We have come across a substrate namely, 5- benzoyl-pyrrolo[2,1-a]isoquinoline in which three different functionalizable C−H bonds were identified that could be judiciously transformed site selectively for the generation ...
Synthesis of Benzothienobenzofurans via Annulation of Electrophilic Benzothiophenes with Phenols

Akhil, K R; Babu, S A; Nitha, P R; Jagadeesh, K; Jubi, J (American Chemical Society, 2021)

We have developed a metal-free, mild, and green synthetic route toward benzothieno[3,2-b]benzofurans by the annulation of 3-nitrobenzothiophene with phenols. The reaction was found to be general with a range of substituted ...
Unprecedented access to functionalized pyrrolo[2,1-a]isoquinolines from the domino reaction of isoquinolinium ylides and electrophilic benzannulated heterocycles

Babu, S A; Rajalekshmi, A R; Nitha, P R; Omanakuttan, V K; Rahul, P; Varughese, S; John, J (Royal Society of Chemistry, 2021)

We have come across an unexpected reaction between electrophilic indoles and isoquinolinium methylides for accessing functionalized pyrrolo[2,1-a]isoquinolines. The reaction was found in general to yield the products in ...

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