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A clean and highly efficient protocol for green synthesis of bis(indole)methanes and bis (pyrazolyl)methanes have been successfully achieved by using a naturally sourced bio-surfactant, chickpea leaf exudates (CLE) as a...

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An external base‐free, efficient, cost‐effective, and environmentally benign protocol has been developed for the one‐pot multicomponent synthesis of highly functionalized pyranopyrazoles and benzochromenes using water extract of Agave americana (century plant) leaf ash, a waste‐derived catalyst, at room temperature. Mild reaction conditions, high yield, easy isolation of products, eco‐friendly standards, and no chromatographic separation are the salient features of this protocol.