CERIC(IV) AMMONIUM NITRATE MEDIATED TRANSESTERIFICATION AND ESTERIFICATION
摘要:
The transesterification of carboxylic esters and the esterification of carboxylic acids are effected under mild conditions in the presence of ceric(IV) ammonium nitrate (CAN).
Indirect electrochemical methoxylation of -acyl and -carboalkoxy α-aminoacidesters in α-position to nitrogen is possible, if chloride is used as mediator. The course of the reaction depends upon the protecting group as well as upon the amino acid side-chain. Increased electron withdrawing effects of the protecting group are accelerating the reaction. On the other hand aliphatic side-chains are diminishing
Substituent Effect on Acidity of Substituted 2-(4-Nitrobenzoylamino)alkanamides in Methanol-Dimethyl Sulfoxide Mixtures
作者:Petr Mitaš、Miloš Sedlák、Jaromír Kaválek
DOI:10.1135/cccc19980085
日期:——
The dissociation constants of substituted 2-(4-nitrobenzoylamino)alkanamides, N-[2-(4-nitrobenzoylamino)alkanoyl]pyrrolidines, and N-alkyl-4-nitrobenzamides have been measured spectrophotometrically in 60 and 80% v/v DMSO. The pKA values of these N-acids are discussed from the point of view of substituents at the acetamide α-carbon atom.
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GINZEL, KLAUS-DIETER;BRUNGS, PETER;STECKHAN, EBERHARD, TETRAHEDRON, 45,(1989) N, C. 1691-1701
CERIC(IV) AMMONIUM NITRATE MEDIATED TRANSESTERIFICATION AND ESTERIFICATION
作者:Bogdan Štefane、Marijan Kočevar、Slovenko Polanc
DOI:10.1081/scc-120004264
日期:2002.1
The transesterification of carboxylic esters and the esterification of carboxylic acids are effected under mild conditions in the presence of ceric(IV) ammonium nitrate (CAN).
Iesce, M. Rosaria; Cermola, Flavio; Graziano, M. Liliana, Journal of the Chemical Society. Perkin transactions I, 1994, # 1, p. 147 - 152
作者:Iesce, M. Rosaria、Cermola, Flavio、Graziano, M. Liliana、Scarpati, Rachele