Publications by authors named "Krishna Nand Singh"

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Easy and Straightforward Access to Tertiary Pyrazolone Alcohols via Oxidative Cyclization of Cinnamic Acids with Arylhydrazines.
Shiv Chand, Saurabh Kumar, Mayank Murthy, Krishna Nand Singh

J Org Chem· December 2025

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Photoredox Catalyzed Cyclization of Enaminones/Ketene ,-Acetals with β-Ketodinitriles to Access Polysubstituted Pyrroles.
Anup Kumar Sharma, Pratima Singh, Krishna Nand Singh

J Org Chem· September 2025

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Synthesis of Unsymmetrical Diaryl Disulfides via I/DMF-Assisted Reductive Cross-Coupling of Sodium Sulfinates with Arenediazonium Tetrafluoroborates/Sodium Metabisulfite.
Aditya Rai, Shubham Sagar Singh, Krishna Nand Singh

J Org Chem· September 2025

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Copper(II)-mediated metalloradical activation: denitrogenative/decarboxylative annulation to 3-arylimidazo[1,2-]pyridines using tetrazolo[1,5-]pyridines and cinnamic acids.
Km Ishu, Krishna Nand Singh

Chem Commun (Camb)· July 2025

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Iodine-mediated regioselective C-3 sulfenylation using elemental sulfur and arylhydrazine hydrochloride to access 3-sulfenylated imidazo[1,2-]pyridines.
Kaushal Kishor, Neha Sharma Prabhakar, Krishna Nand Singh

Org Biomol Chem· March 2025

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Tandem Synthesis of Polysubstituted Pyrroles via Cu(I)-Catalyzed Cyclization of Ketene -Acetals with β-Ketodinitriles.
Anup Kumar Sharma, Mahesh Kumar, Shiv Chand, Krishna Nand Singh

J Org Chem· March 2025

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A Copper-Catalyzed Synthesis of Pyridoquinazolinones via C(sp)-H Functionalization and Annulation of Benzoic Acids with 2-Aminopyridines.
Mahesh Kumar, Anup Kumar Sharma, Km Ishu, Krishna Nand Singh

Org Lett· December 2024

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Metal-Free Decarboxylative Cyanomethylation of β-Aryl/Heteroaryl Substituted α,β-Unsaturated Carboxylic Acids to γ-Ketonitriles.
Shiv Chand, Saurabh Kumar, Anup Kumar Sharma, Krishna Nand Singh

Org Lett· November 2024

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Sterically Controlled Lewis Acid-Base Interaction Toward para-Selective Borylation of Aromatic Aldimines and Benzylamines.
Saikat Guria, Mirja Md Mahamudul Hassan, Sayan Dey, Krishna Nand Singh, Buddhadeb Chattopadhyay

Angew Chem Int Ed Engl· October 2024

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Iodine/DMF-Mediated Regioselective Sulfenylation Using Arenediazonium Tosylates and Sodium Metabisulfite: An Easy Access to 3-Arylthioindoles.
Aditya Rai, Neha Sharma Prabhakar, Kaushal Kishor, Krishna Nand Singh

J Org Chem· October 2024

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Easy Access to α-Ketothioamides via Oxidative Amidation of Bunte Salts Using Electrolysis or Hypervalent Iodine.
Neha Sharma Prabhakar, Kaushal Kishor, Krishna Nand Singh

J Org Chem· September 2024

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Visible-Light-Induced Synthesis of Vinyl Sulfones via Decarboxylative Sulfonylation of Cinnamic Acids Using Sulfonylazides/-Toluenesulfonylmethyl Isocyanide/β-Keto Sulfones.
Km Ishu, Mahesh Kumar, Krishna Nand Singh

J Org Chem· August 2024

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Sulfur-Mediated Decarboxylative Amidation of Cinnamic Acids via C═C Bond Cleavage.
Mahesh Kumar, Anup Kumar Sharma, Km Ishu, Krishna Nand Singh

J Org Chem· July 2024

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Electro-oxidative coupling of Bunte salts with aryldiazonium tetrafluoroborates: a benign access to unsymmetrical sulfoxides.
Saurabh Kumar, Shiv Chand, Krishna Nand Singh

Org Biomol Chem· January 2024

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Synthesis of unsymmetrical ketones dual catalysed cross-coupling of α,β-unsaturated carboxylic acids with aryldiazonium salts.
Shiv Chand, Anup Kumar Sharma, Anand Kumar Pandey, Krishna Nand Singh

Chem Commun (Camb)· December 2023

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Whole chloroplast genome-specific non-synonymous SNPs reveal the presence of substantial diversity in the pigeonpea mini-core collection.
Kuldeep Kumar, Palak Gupta, Krishna Nand Singh, Machindra Sudhir Nirgude, Harsha Srivastava

3 Biotech· November 2023

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Exploring genetic diversity and ascertaining genetic loci associated with important fruit quality traits in apple ( ×  Borkh.).
Poonam, Rajnish Sharma, Parul Sharma, Naveen C Sharma, Kuldeep Kumar, Krishna Nand Singh

Physiol Mol Biol Plants· November 2023

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Visible-Light-Mediated Synthesis of α-Ketoamides via Oxidative Amination of 2-Bromoacetophenones Using Eosin Y as a Photoredox Catalyst.
Kaushal Kishor, Neha Sharma Prabhakar, Krishna Nand Singh

Chem Asian J· October 2023

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Synthesis of functionalized alkenes Cu(I)-catalysed allylation of acetanilides using Morita-Baylis-Hillman bromides.
Ramesh Kumar Vishwakarma, Krishna Nand Singh

Org Biomol Chem· October 2023

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A regioselective synthesis of β-difluoromethoxy vinyl sulfones -difluoromethylation of β-ketosulfones using sodium chlorodifluoroacetate.
Km Ishu, Neha Sharma Prabhakar, Krishna Nand Singh

Org Biomol Chem· August 2023

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Easy access to α-carbonyl sulfones using cross-coupling of α-aryl-α-diazoesters with sulfonyl hydrazides.
Anup Kumar Sharma, Shiv Chand, Anand Kumar Pandey, Krishna Nand Singh

Org Biomol Chem· February 2023

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Copper-Catalyzed Thiolation of Hydrazones with Sodium Sulfinates: A Straightforward Synthesis of Benzylic Thioethers.
Anand Kumar Pandey, Shiv Chand, Anup Kumar Sharma, Krishna Nand Singh

J Org Chem· January 2023

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Visible-Light Photoredox-Catalyzed Synthesis of -Oxiranes via Decarboxylative Stereospecific Epoxidation of -Cinnamic Acids by Aryldiazonium Salts.
Shiv Chand, Anup Kumar Sharma, Anand Kumar Pandey, Krishna Nand Singh

Org Lett· September 2022

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Visible-Light-Induced Photocatalytic Trifluoromethylation of Bunte Salts: Easy Access to Trifluoromethylthiolated Synthons.
Neha Sharma Prabhakar, Saurabh Kumar, Prince Kumar Gupta, Krishna Nand Singh

J Org Chem· August 2022

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A convenient synthesis of -(hetero)arylamides by the oxidative coupling of methylheteroarenes with amines.
Anjali Jaiswal, Preeti, Krishna Nand Singh

Org Biomol Chem· August 2022

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