Intramolecular copper(I)-catalyzed 1,3-dipolar cycloaddition of azido-alkynes: synthesis of triazolo-benzoxazepine derivatives and their biological evaluation
Synthesis of a series of [1,2,3] triazolo [5,1-c] [1,4]benzoxazepine derivatives have been accomplished by the intramolecular Cu(I)-catalyzed cycloaddition of azido-alkynes derived from salicylaldehyde. The biological profile of these heterocyclic structural scaffolds toward anti-bacterial as well as anti-fungal activity has also been illustrated.
一系列[1,2,3]三唑并[5,1- c ] [1,4]苯并a庚因衍生物的合成已通过分子内Cu(I)催化的自水杨醛衍生的叠氮基炔烃的环加成反应完成。还已经阐明了这些杂环结构支架对抗菌以及抗真菌活性的生物学特性。
Steric acceleration of intramolecular azide cycloadditions
作者:Barry S. Orlek、Peter G. Sammes、David J. Weller
DOI:10.1039/c39930000607
日期:——
Use of conformational restraints, induced by different ortho-substituents in 1-allyloxy- and 1-prop-2-ynyloxy-2-azidomethylbenzenes, can be employed to enhance the smooth intramolecular addition of the azide group to the unsaturated bond, followed by, in one example, removal of the conformational constraint.