Mayer Axel, Meier Herbert, Tetrahedron Lett, 35 (1994) N 14, S 2161-2164
作者:Mayer Axel, Meier Herbert
DOI:——
日期:——
US4997948A
申请人:——
公开号:US4997948A
公开(公告)日:1991-03-05
US5068342A
申请人:——
公开号:US5068342A
公开(公告)日:1991-11-26
1H-naphtho[2,1-b]thiete and 2H-naphtho[2,3-b]thiete- synthesis and reactivity
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