Intramoleculare (4+2)-cycloadditionen mit inversem elektronenbedarf
作者:H Schuster、J Sauer
DOI:10.1016/s0040-4039(00)88268-4
日期:1983.1
1,2,4,5-Tetrazines, 1,2,4-triazines, α-pyrones and cyclopentadienones are reacted with bifunctional dienophiles 6 – 9 to yield semibullvalenes, snoutenes, azasnoutenes and polycyclic azo compounds or carbocycles in few steps.