Electroactivated alkylation of amines with alcohols <i>via</i> both direct and indirect borrowing hydrogen mechanisms
作者:Benjamin Appiagyei、Souful Bhatia、Gabriela L. Keeney、Troy Dolmetsch、James E. Jackson
DOI:10.1039/c9gc03747k
日期:——
with simple alcohols has been achieved in aqueous solution via an electrochemical version of the so-called “borrowing hydrogen methodology”. Catalyzed by Ru on activated carbon cloth (Ru/ACC), the reaction works well with methanol, and with primary and secondary alcohols. Alkylation can be accomplished by either of two different electrocatalytic processes: (1) in an undivided cell, alcohol (present in
Willstaetter, Chemische Berichte, 1902, vol. 35, p. 602
作者:Willstaetter
DOI:——
日期:——
Synthesis of N-alkyl-N-methyl amino acids. Scope and limitations of base-induced N-alkylation of Cbz-amino acids
作者:Maciej Stodulski、Jacek Mlynarski
DOI:10.1016/j.tetasy.2008.03.025
日期:2008.5
The reaction of N-benzyloxycarbonyl derivatives of aliphatic amino acids with NaH/alkyl iodides gave the corresponding N-Cbz-N-alkyl derivatives in good to high yields. The scope and limitations of this simple N-alkylation reaction were investigated as a convenient and flexible attempt to prepare unsymmetrically N,N-diprotected alpha-amino acids. The procedure is based on the N-alkylation of N-carbamoyl amino acids, a one-pot deprotection/protection sequence without extensive purification of the products. Protection of the carboxyl function is not required while the starting materials are inexpensive and commercially available. (C) 2008 Elsevier Ltd. All rights reserved.
Discovery of the TLR7/8 Antagonist MHV370 for Treatment of Systemic Autoimmune Diseases