Generation and cycloaddition reactions of the 1,2,3-triazole analogue of o-quinodimethane
作者:George E. Mertzanos、Julia Stephanidou-Stephanatou、Constantinos A. Tsoleridis、Nicholas E. Alexandrou
DOI:10.1016/s0040-4039(00)60120-x
日期:1992.7
4,5-Dihydro-4,5-dimethylene-1-phenyl-1,2,3-triazole (4), the 1,2,3-triazole analogue ofo-quinodimethane, can be generated in situ from 4,5-bis(bromomethyl) derivative (3) by sodium iodide induced 1,4-elimination process. By trapping the 1,4-dimethylene-triazole with symmetrically and unsymmetrically substituted dienophiles the Diels-Alder cycloadducts were isolated in moderate to low yields; in the