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Showing 1 to 4 of 4 for “"Benzoin Condensation"”.
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Dearomative reduction of arenes through the use of arenophiles & studies towards the synthesis of cardiotonic steroids calotropin and calactin
… strategy which utilizes a NHC-catalyzed benzoin condensation, and Pd-catalyzed nucleophilic dearomatization of a phenol is described. Also described, is the semisynthetic strategy towards calotropin from estrone, where the aromatic A ring is dearomatized to introduce a C1 fragment at the …
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Design and Synthesis of Chiral Triazolium and Thiazolium Salts Incorporating Hydrogen-Bonding Motifs as Organocatalysts
The benzoin condensation is the rst reported example of organocatalysis, and has been studied and used in organic synthesis for over 200 years. Originally catalysed by the cyanide anion, the reaction can also proceed with thiamine as a catalyst. Since then, many N- heterocyclic carbene (NHC) …
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Utilization of Biomass Derived Furans in Value-Added Organics and Heterogeneous Oxorhenium Catalysts for Deoxydehydration of Diols
… oxazoline was studied for the catalytic condensation of diols or epoxides with aldehydes. Here, reactions were done under neat conditions and mild temperatures, achieving good to excellent yields of the 1,3-dioxolane products. The reaction conditions were then applied to the biorenewables …
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Benign Catalysis and Expansion of Cyclobenzoins
Cyclobenzoins are a fledgling class of macrocycles first reported by the Miljanić group in 2015. Since the first reports, several modifications to the original two compounds, cyclotribenzoin and cyclotetrabenzoin, have been reported, but no developments on the production have been reported. Whether …