ChemInform Abstract: Efficient Assembly of Novel Indolo Quinoxaline Architectures Utilizing Isatin Through Condensation and Cyclization Process.

Ganesan, Shanthi; Muniraj, Sarangapani; Doble, Mukesh

doi:10.1002/chin.201546186

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2020

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“…23 Thus, we envisaged synthesizing the pyrazole-based compounds by a Michael addition initiated domino cyclization. In continuation of our preliminary research studies [24][25][26][27] and inspired by the efficient synthetic protocol accomplished by the Bakthadoss Research Group involving a solid-state melt reaction (SSMR), 2,3 we have utilized the aforementioned SSMR protocol for the synthesis of pyrazole-containing molecules.…”

Section: Introductionmentioning

confidence: 99%

An expedient, one-pot, stepwise sequential approach for the regioselective synthesis of pyrazolines

Ganesan

Muniraj

Doble

2020

Journal of Chemical Research

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An efficient approach for the synthesis of pyrazoline/pyrazole-tethered pyridinyl methanones is described via a one-pot, stepwise, sequential methodology using chalcones and pyridine-4-carbohydrazide as substrates through a Michael addition followed by cyclization. The reaction proceeds via a catalyst-, solvent-, work-up-, and column-chromatography-free method under melt conditions to provide the pyrazolines in short reaction times with high atom efficiency.

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