DABCO-Mediated Synthesis and Biological Activity of Cyanohydrin Esters
作者:H. M. R. Hoffmann、Z. M. Ismail、Reiner Hollweg、Abdul R. Zein
DOI:10.1246/bcsj.63.1807
日期:1990.6
Cyanohydrinesters 1–31 have been prepared from α-ketonitriles and aldehydes using DABCO (1,4-diazabicyclo[2.2.2] octane) as nucleophilic acylation catalyst. The modified piperonal 8 was found to inhibit the formation of thromboxane synthetase.
Catalytic Hydrogenation of Cyanohydrin Esters as a Novel Approach toN-Acylated β-Amino Alcohols – Reaction Optimisation by a Design of Experiment Approach
作者:Lars Veum、Silvia R. M. Pereira、Jan C. van der Waal、Ulf Hanefeld
DOI:10.1002/ejoc.200500870
日期:2006.4
The catalytic hydrogenation of acylatedcyanohydrins and subsequent intramolecular migration of the acyl group to yield pharmaceutically interesting N-acyl β-amino alcohols is shown to be a successful one-pot preparation method. The combination of a multistep DoE approach and high-throughput methodology proved to be an effective strategy for the optimisation of the reaction. With the favoured catalyst/solvent