Synthesis and CH-acidity of N, N-disubstituted aminotriphenyl-phosphonium salts

MI Kabachnik, DI Lobanov, AG Matveeva…

Index: Kabachnik, M. I.; Lobanov, D. I.; Matveeva, A. G.; Kovsheva, O. E.; Terekhova, M. I.; et al. Phosphorus, Sulfur and Silicon and the Related Elements, 1991 , vol. 62, # 14 p. 243 - 250

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Abstract

Abstract A number of (substituted-methylamino) triphenylphosphonium salts (APS) with the general formula [Ph3P+ N (R) CH2R'] X− has been synthesized. CH-Acidity of some of the APS obtained has been measured (pK 14.7-24.8) by an indicator method in DMSO/counterion-K+, standard-9-phenyl fluorene (pK 18.5)/. Acidification effect of the Ph3P+ N (Ph) group ([sgrave]= CH2= 0.70) and of the Ph3P+ N (Bu) group ([sgrave]− CH2 ...