N,N′-transphthaloylation in a monoprotected diamine
A convenient and simple method is described for formally transferring a phthaloyl protecting group from one amino group to another in an unsymmetrical diamine. The NMR spectra of some of the amido intermediates reveal that, at room temperature, there is restricted rotation around N-C=O and, in some cases, C-C=O bonds in these molecules. Georg Thieme Verlag Stuttgart.
McCormick, Joan E.,McElhinney, R. Stanley,McMurry, T. Brian H.,O'Brien, John E.
p. 983 - 988
(2007/10/03)
The photochemistry of acyl azides; X: Aroylnitrenes for heterocycle synthesis
Stereoselective cycloaddition of aroylnitrenes, generated by photolysis of the corresponding azides 2a,b with the racemic mixtures of cyclic enol ethers 5b and 5c was achieved with the formation of oxazolines 8. Both the chiral auxiliary attached to the a
Roeske,Abraham
p. 1125 - 1132
(2007/10/03)
More Articles about upstream products of 888493-95-6