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Amination of Phenylketene Revisit. Substituent Effect on Reactivity
…, M Zhang, S Kobayashi, M Mishima
Index: Badal, Md. Mizanur Rahman; Zhang, Min; Kobayashi, Shinjiro; Mishima, Masaaki Bulletin of the Chemical Society of Japan, 2013 , vol. 86, # 7 p. 856 - 863
The asymmetric stretching frequencies of the ketene group of the m, p-substituted phenylketenes were found to be correlated with σ. The substituent effects for the second- order rate constants of phenylketenes with various amines were not correlated linearly with any single substituent constants. The curved σ°-correlations with a plateau at a high reactivity region were observed for meta-substituents and p-chloro. The substituent effects ...