Preparation of β-keto esters and β-diketones by C-acylation/deacetylation of acetoacetic esters and acetonyl ketones with 1-acylbenzotriazoles

…, Z Wang, M Wang, CR Wilkerson, CD Hall…

文献索引：Katritzky, Alan R.; Wang, Zuoquan; Wang, Mingyi; Wilkerson, Chavon R.; Hall, C. Dennis; Akhmedov, Novruz G. Journal of Organic Chemistry, 2004 , vol. 69, # 20 p. 6617 - 6622

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被引用次数: 82

摘要

Acyl-, aroyl-, and heteroaroyl-acetic esters 6a-f and 8a-l are prepared by reactions of 1- acylbenzotriazoles 1a-k with acetoacetic esters 5 or 7a, b in the presence of sodium hydride followed by regioselective deacetylation. Similar C-acylation/deacetylation of acetylacetone and benzoylacetone affords β-diketones 10a-d and 13a-c, respectively.

609-14-3

2-甲基乙酰乙酸乙酯

4231-62-3

1-苯甲酰-1H-苯并三唑

~16%

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~96%

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~82%

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~84%

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~56%

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~76%

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~63%

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