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Tamanna, Norwin

doi:10.1023/a:1023235107818

Cited by 1 publication

(1 citation statement)

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“…Chauhan et al have developed an organocatalytic route to synthesise highly functionalised isochroman derivatives 216 through a cascade sequence that proceeds via peroxyhemiacetalisation, desymmetrisation through dynamic kinetic resolution and oxa-Michael addition using quinidine 4A as the catalyst (Scheme 72). 127 The reaction scope ex-…”

Section: Peroxyhemiacetalisation Of Isochromansmentioning

confidence: 99%

Unravelling the Development of Non-Covalent Organocatalysis in India

Sahoo¹,

Panda²,

Sahoo³

2022

Synlett

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This review is devoted to underpinning the contributions of Indian researchers towards asymmetric organocatalysis. More specifically, a comprehensive compilation of reactions mediated by a wide range of non-covalent catalysis is illustrated. A detailed overview of vividly catalogued asymmetric organic transformations promoted by hydrogen bonding and Brønsted acid catalysis, alongside an assortment of catalysts is provided. Although asymmetric organocatalysis has etched itself in history, we aim to showcase the scientific metamorphosis of Indian research from baby steps to large strides within this field. 1 Introduction2 Non-Covalent Catalysis and Its Various Activation Modes3 Hydrogen-Bonding Catalysis3.1 Urea- and Thiourea-Derived Organocatalysts3.1.1 Thiourea-Derived Organocatalysts3.1.2 Urea-Derived Organocatalysts3.2 Squaramide-Derived Organocatalysts3.2.1 Michael Reactions3.2.2 C-Alkylation Reactions3.2.3 Mannich Reactions3.2.4 [3+2] Cycloaddition Reactions3.3 Cinchona-Alkaloid-Derived Organocatalysts3.3.1 Michael Reactions3.3.2 Aldol Reactions3.3.3 Friedel–Crafts Reactions3.3.4 Vinylogous Alkylation of 4-Methylcoumarins3.3.5 C-Sulfenylation Reactions3.3.6 Peroxyhemiacetalisation of Isochromans3.3.7 Diels–Alder Reactions3.3.8 Cycloaddition Reactions3.3.9 Morita–Baylis–Hilman Reactions4 Brønsted Acid Derived Organocatalysts4.1 Chiral Phosphoric Acid Catalysis4.1.1 Diels–Alder Reactions4.1.2 Addition of Ketimines4.1.3 Annulation of Acyclic Enecarbamates5 Conclusion

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Section: Peroxyhemiacetalisation Of Isochromansmentioning

confidence: 99%