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Citation: CAI Ming-Zhong, HU Rong-Hua. Palladium-Catalyzed Ethoxycarbonylation of Arenediazonium Tetrafluoroborates[J]. Chinese Journal of Applied Chemistry, ;2001, 18(11): 924-926. shu

Palladium-Catalyzed Ethoxycarbonylation of Arenediazonium Tetrafluoroborates

CAI Ming-Zhong ^a ,
HU Rong-Hua ^b

1.
a Faculty of Chemistry and Biology Science, Jiangxi Normal University, Nanchang 330027;
2.
b Department of Chemistry, Jinggangshan Teachers' College, Ji'an

Received Date: 29 March 2001
Available Online: 22 May 2001
Fund Project: 江西省自然科学基金资助项目(996048) (996048)

Palladium-catalyzed ethoxycarbonylation reaction of arenediazonium tetrafluoroborates has been carried out under very mild conditions in the presence of a catalytic amount of Pd(OAc)₂ and CaO to afford a variety of substituted ethyl benzoates in good yields. The effects of the catalyst and the base on ethoxycarbonylation reaction were investigated and CaO was shown to be the best base. The ethoxycarbonylation reaction can tolerate a variety of substituents in the benzene rings and has very high chemoselectivity. This paper provides a simple and practical procedure for syntheses of a variety of substituted ethyl benzoates.
- substituted ethyl benzoate,
- preparation,
- palladium catalysis,
- arenediazonium salt,
- carbonylation
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