作者:Axel Mayer、Herbert Meier
DOI:10.1016/s0040-4039(00)76785-2
日期:1994.4
The title compounds 4 and 8 are obtained by flash vacuum pyrolysis of the corresponding hydroxymethylthionaphthols 3 and 7. Whereas 4 shows a smooth ring opening on heating, 8 is thermally stable but reacts photochemically. The different behavior is explained on the basis of an MNDO calculation. The valence isomers 4′ and 8′ represent thioquinonemethides, which are highly reactive components in [12π
标题化合物4和8由相应的hydroxymethylthionaphthols闪光真空热解获得的3和7。而4示出了在加热的平滑开环,8是热稳定的,但发生反应的光化学。根据MNDO计算说明了不同的行为。价异构体4'和8'表示thioquinonemethides,其是在[12π+2π]环加成方法的高反应性的组分(4 → 9,10,11 ; 8 → 12)。