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ChemicalBook CAS DataBase List 1-Hydroxy-2-naphthoic acid

1-Hydroxy-2-naphthoic acid synthesis

7synthesis methods
Treatment of the dried sodium salt of 1-naphthol with carbon dioxide at 135℃ under pressure gives an 80 % yield of product.
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Yield:-

Steps:

Multi-step reaction with 4 steps
1.1: 1H-imidazole / N,N-dimethyl-formamide / 0.5 h / 0 - 20 °C / Inert atmosphere
1.2: 0 - 20 °C / Inert atmosphere
2.1: water; sodium hydrogencarbonate / N,N-dimethyl-formamide; diethyl ether / 0.5 h / 20 °C / Inert atmosphere
3.1: palladium diacetate; silver(I) acetate; N-tert-butoxycarbonyl-L-leucine; 2,2,2-trifluoroethanol / 1,2-dichloro-ethane / 0.08 h / 95 °C / Inert atmosphere
3.2: 18 h / 95 °C / Inert atmosphere
4.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.5 h / Inert atmosphere

References:

Wang, Yang;Gevorgyan, Vladimir [Angewandte Chemie - International Edition,2015,vol. 54,# 7,p. 2255 - 2259][Angew. Chem.,2015,vol. 127,# 7,p. 2283 - 2287,5]

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