Development of an electrolytic system for non-kolbe electrolysis based on the acid-base reaction between carboxylic acids as a substrate and solid-supported bases
We have successfully developed a novel electrolytic system for non-Kolbe electrolysis based on the acid-base reaction between carboxylic acids as a substrate and solid-supported bases. It was found that the acid-base reaction between carboxylic acids and solid-supported basespreferentially takes place to reduce the cell voltage in MeOH. On the basis of the electrolytic system, non-Kolbe electrolysis of various carboxylic acids was carried out to provide the corresponding methoxylated products in excellent yields. Copyright
Catalyst-free Mannich-type reaction of 1-(N-acylamino)alkyltriphenylphosphonium salts with silyl enolates
A catalyst-free reaction of 1-(N-acylamino)alkyltriphenylphosphonium tetrafluoroborates with silyl enolates was developed to prepare β-amino carbonyl compounds. The reported method is a useful approach for the preparation of N-protected β-amino esters as
Pa?dzierniok-Holewa, Agnieszka,Wal?cka-Kurczyk, Alicja,Musio?, Szymon,Stecko, Sebastian
p. 732 - 742
(2019/01/10)
N-[1-(Benzotriazol-1-yl)alkyl]amides from N-acyl-α-amino acids or N-alkylamides
A variety of N-(1-methoxyalkyl)amides react with benzotriazole in the presence of PPh3·HBF4 and organic bases (Hünig's base, DBU or DABCO) or solid-state-supported bases (SiO2-Pip or IRA-67) in CHCl3 to give N-[
Adamek, Jakub,Mazurkiewicz, Roman,Pa?dzierniok-Holewa, Agnieszka,Ku?nik, Anna,Grymel, Miros?awa,Zielińska, Katarzyna,Simka, Wojciech
p. 5725 - 5729
(2015/03/30)
1-(N -acylamino)alkyl sulfones from N -acyl-α-amino acids or N -alkylamides
A variety of N-(1-methoxyalkyl)amides or carbamates react readily with sodium aryl sulfinates in the presence of triphenylphosphonium tetrafluoroborate or bromide in CHCl3 under mild conditions to give 1-(N-acylamino)alkyl sulfones in good yiel
Adamek, Jakub,Mazurkiewicz, Roman,Pazdzierniok-Holewa, Agnieszka,Grymel, Miroslawa,Kuznik, Anna,Zielinska, Katarzyna
p. 2765 - 2770
(2014/04/17)
Concerning the Reaction Mechanism of the Anodic Oxidation of N-Acylated α-Aminocarboxylic Acids
Anodic oxidation of N-acylated α-aminocarboxylic acids 1 leads by non-Kolbe electrolysis only to substitution products 2; in contrast to O-acylated hydroxycarboxylic acids no fragmentation product 3 can be observed.Derivation of the acids 1 proves that th
Thomas, H. Guenter,Kessel, Stephan
p. 1575 - 1578
(2007/10/02)
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