Abstract At room temperature 1-phenyl-2, 5-dimethylarsole 1 gives [4+ 2] cycloadditions with dienophiles whereas at 160 C it yields arsenic atoms which react with tolane to give the 1, 4- diarsabicyclo [2.2. 2] octatriene 8; 1, 2, 5-triphenylarsole 2 is less reactive at room temperature but isomerizes at 160 C to give the 2H-arsole 5 which reacts as a diene with tolane to yield the 1-arsanorbornadiene 6, and as a dienophile through its As C double ...
![5,5,6,6-Tetracyan-1,4-dimethyl-7-phenyl-7-arsa-bicyclo[2.2.1]hepten-(2) Structure](https://image.chemsrc.com/caspic/354/20527-08-6.png)
