Formation of carboxylic acids from Grignard reagents and CO2
Description: Grignard reagents will add to carbon dioxide, forming carboxylate salts. After acidic workup, carboxylic acids are formed.
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Real-World Examples:
Org. Synth. 1925, 5, 75
DOI Link:10.15227/orgsyn.005.0075
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Org. Synth. 1928, 8, 104
DOI Link: 10.15227/orgsyn.008.0104
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Org. Synth. 1931, 11, 80
DOI Link: 10.15227/orgsyn.011.0080
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Org. Synth. 1941, 21, 77
DOI Link: 10.15227/orgsyn.021.0077
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Org. Synth. 1959, 39, 19
DOI Link: 10.15227/orgsyn.039.0019
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Org. Synth. 1979, 59, 85
DOI Link: 10.15227/orgsyn.059.0085
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help me find the reaction mechanism for the formation of carboxylic acids from carbon (iv) cxide by grignard synthesis
It is not a complicated mechanism. The Grignard adds to CO2 as it would to any other carbonyl, and the resulting carboxylate is then treated with acid to give the neutral carboxylic acid. See: https://www.nature.com/articles/ncomms6933
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