Synthesis and decarboxylation of N-acyl-
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Roman Mazurkiewicz; Agnieszka Październiok-Holewa; Mirosława Grymel
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Article
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2008
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Elsevier Science
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French
⚖ 103 KB
4-Phosphoranylidene-5(4H)-oxazolones 1 undergo hydrolysis in THF in the presence of HBF 4 at room temperature to give N-acyl-atriphenylphosphonioglycines 3 (R 2 = H) in very good yields. 4-Alkyl-4-triphenylphosphonio-5(4H)-oxazolones 2 react with water in CH 2 Cl 2 /THF solution without any acidic c