The Photochemistry of Acyl Azides; X: Aroylnitrenes for Heterocycle Synthesis
作者:W. Abraham、Y. Roeske
DOI:10.1055/s-2001-15054
日期:——
0039-7881 Abstract: Stereoselectivecycloaddition 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 chiralauxiliary attached to the aroylnitrene and the substituent in the substrate is necessary in order to selectively allow the formation of the trans-adducts