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Gavelle S, Abid I, Biletskyi B, Henrion S, Hémon-Ribaud A, Lhoste J, Martel A, Dujardin G, Gaulon-Nourry C. TIPS-Diazoacetone Aldol Addition: Mechanistic Aspects and Contribution to the Synthesis. J Org Chem 2021; 86:4917-4931. [PMID: 33725439 DOI: 10.1021/acs.joc.0c02725] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Aldol addition of α-triisopropylsilyl-α-diazoacetone (TIPS-diazoacetone), promoted by excess lithium diisopropylamide (LDA), was developed and applied to the synthesis of original C-TIPS diazoaldols, C-TIPS diazoketols, and a related Mannich-type product. An unprecedented mechanistic pathway has been proposed, involving a lithiated triazene intermediate resulting from the nucleophilic addition of LDA on the diazo moiety, supported by experimental results and DFT calculations.
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Affiliation(s)
- Sigrid Gavelle
- Institut des Molécules et Matériaux du Mans, IMMM UMR 6283 CNRS - Le Mans Université, Avenue Olivier Messiaen, 72085 CEDEX 9 Le Mans, France
| | - Imen Abid
- Institut des Molécules et Matériaux du Mans, IMMM UMR 6283 CNRS - Le Mans Université, Avenue Olivier Messiaen, 72085 CEDEX 9 Le Mans, France
| | - Bohdan Biletskyi
- Institut des Molécules et Matériaux du Mans, IMMM UMR 6283 CNRS - Le Mans Université, Avenue Olivier Messiaen, 72085 CEDEX 9 Le Mans, France
| | - Sylvain Henrion
- Institut des Molécules et Matériaux du Mans, IMMM UMR 6283 CNRS - Le Mans Université, Avenue Olivier Messiaen, 72085 CEDEX 9 Le Mans, France
| | - Annie Hémon-Ribaud
- Institut des Molécules et Matériaux du Mans, IMMM UMR 6283 CNRS - Le Mans Université, Avenue Olivier Messiaen, 72085 CEDEX 9 Le Mans, France
| | - Jérôme Lhoste
- Institut des Molécules et Matériaux du Mans, IMMM UMR 6283 CNRS - Le Mans Université, Avenue Olivier Messiaen, 72085 CEDEX 9 Le Mans, France
| | - Arnaud Martel
- Institut des Molécules et Matériaux du Mans, IMMM UMR 6283 CNRS - Le Mans Université, Avenue Olivier Messiaen, 72085 CEDEX 9 Le Mans, France
| | - Gilles Dujardin
- Institut des Molécules et Matériaux du Mans, IMMM UMR 6283 CNRS - Le Mans Université, Avenue Olivier Messiaen, 72085 CEDEX 9 Le Mans, France
| | - Catherine Gaulon-Nourry
- Institut des Molécules et Matériaux du Mans, IMMM UMR 6283 CNRS - Le Mans Université, Avenue Olivier Messiaen, 72085 CEDEX 9 Le Mans, France
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BURTOLOSO ANTONIOC, MOMO PATRÍCIAB, NOVAIS GRAZIELEL. Traditional and New methods for the Preparation of Diazocarbonyl Compounds. ACTA ACUST UNITED AC 2018; 90:859-893. [DOI: 10.1590/0001-3765201820170768] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 11/16/2017] [Indexed: 12/14/2022]
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