Gadi Ranjith Kumar
Academy of Scientific and Innovative Research
10 Papers
189 Citations
Gadi Ranjith Kumar is an academic researcher from Academy of Scientific and Innovative Research. The author has contributed to research in topics: Catalysis & Propargyl. The author has an hindex of 5, co-authored 10 publications. Previous affiliations of Gadi Ranjith Kumar include Central Drug Research Institute.
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Papers
Synthesis of 3-Sulfonylamino Quinolines from 1-(2-Aminophenyl) Propargyl Alcohols through a Ag(I)-Catalyzed Hydroamination, (2 + 3) Cycloaddition, and an Unusual Strain-Driven Ring Expansion.
Yalla Kiran Kumar,Gadi Ranjith Kumar,Thota Jagadeshwar Reddy,Balasubramanian Sridhar,Maddi Sridhar Reddy +4 more
TL;DR: A silver-catalyzed conversion of 1-aminophenyl)-propargyl alcohols to 4-substituted 3-tosylaminoquinolines using TsN3 as an amino surrogate is described and it is shown that the cyclic enamines in similar conditions produce amidines via a C-C bond migration.
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A direct access to isoxazoles from ynones using trimethylsilyl azide as amino surrogate under metal/catalyst free conditions.
Gadi Ranjith Kumar,Gadi Ranjith Kumar,Yalla Kiran Kumar,Maddi Sridhar Reddy,Maddi Sridhar Reddy +4 more
TL;DR: A general method for isoxazoles from readily available ynones using trimethylsilyl azide as an amino surrogate, likely via an unprecedented hydroazidation of the alkyne and denitrogenative cyclization, is demonstrated.
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Cu-catalyzed conversion of propargyl acetates to E-α,β-unsaturated amides via ketenimine formation with sulfonyl azides.
TL;DR: The reaction between readily accessible propargyl acetates and sulfonyl azides in the presence of CuI catalyst yields trans-α,β-unsaturated N-tosylamides via N-sulfonyl ketenimine formation followed by a probable 1,3-OAc migration ([3,3]-sigmatropic rearrangement).
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A Direct Access to Isoxazoles from Ynones Using Trimethylsilyl Azide as Amino Surrogate under Metal/Catalyst Free Conditions.
Gadi Ranjith Kumar,Gadi Ranjith Kumar,Yalla Kiran Kumar,Maddi Sridhar Reddy,Maddi Sridhar Reddy +4 more
TL;DR: In this article, a general method for isoxazoles from readily available ynones using trimethylsilyl azide as an amino surrogate, likely via an unprecedented hydroazidation of the alkyne and denitrogenative cyclization, is demonstrated.
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Synthesis of benzofuranyl and indolyl methyl azides by tandem silver-catalyzed cyclization and azidation.
Gadi Ranjith Kumar,Gadi Ranjith Kumar,Yalla Kiran Kumar,Ruchir Kant,Maddi Sridhar Reddy,Maddi Sridhar Reddy +5 more
TL;DR: The synthetic utility of this method has been demonstrated by using the azidomethyl unit of the above synthesized heterocycles as the base for a variety of other functionalizations, such as triazole-, tetrazole-, amide-, amine-, and pyrido-derivatives.
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