Trichloroisocyanuric/TEMPO Oxidation of Alcohols under Mild Conditions: A Close Investigation
作者:Lidia De Luca、Giampaolo Giacomelli、Simonetta Masala、Andrea Porcheddu
DOI:10.1021/jo034276b
日期:2003.6.1
Efficient oxidation of primary alcohols to the corresponding carboxylic acids can be carried out at room temperature and in acetone/water, using trichloroisocyanuric acid (TCCA) in the presence of catalytic TEMPO. The mild conditions of this procedure and the total absence of any transition metal make this reaction suitable for safe laboratory use. A possible mechanism is presented and discussed.
General and Versatile Approach to the Synthesis of Optically Active 5- Alkylpiperazine-2-carboxylic Acids
General and convenient syntheses of optically active 5-alkylpiperazine-2-carboxylic acids are described. The methods are based on cyclization of L- or D-serine with α-amino acids and occur without loss of optical purity. The presented procedures are based on readily available starting materials and can be arranged for multigram quantities.