Journal
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
Volume 2021, Issue 46, Pages 6340-6346Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.202100919
Keywords
Carboxylic acids; Decarboxylation; Nucleophilic addition; Palladium; Synthetic Methods
Categories
Funding
- DFG [MA 6093/4-1]
- research unit NanoKat at the TU Kaiserslautern
- Projekt DEAL
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This study presents a palladium-catalyzed decarboxylative 1,2-addition of carboxylic acids to glyoxylic acid esters, providing access to the mandelic acid scaffold in good yields. The method utilizes readily available benzoic acids as a more sustainable alternative to preformed organometallic nucleophiles, showing promise for environmentally friendly organic synthesis.
The formation of C-C-bonds constitutes one of the most fundamental synthetic operations in organic chemistry. The nucleophilic addition of preformed organometallic reagents to an electrophilic carbonyl functionality represents a classical method for the selective construction of a C-C-bond. However, the synthesis and utilization of an organometallic reagent is associated with an unfavorable environmental profile. Herein, we disclose a Palladium-catalyzed decarboxylative 1,2-addition of carboxylic acids to glyoxylic acid esters. This novel method provides access to the mandelic acid scaffold in good yields. Easy-to-handle and readily available benzoic acids are utilized as more sustainable alternative to preformed organometallic nucleophiles.
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