作者:Susan K Armstrong、Brett A Christie
DOI:10.1016/s0040-4039(97)82967-x
日期:1996.12
perform ring closing metathesis reactions on substrates containing a sulphide group, converting diallyl sulphide 5 to 2,5-dihydrothiophene 6 with >99 % conversion. By contrast, the ruthenium alkylidene catalyst 2, which is generally more tolerant of functional groups in the substrate, is unreactive towards diallylsulphide. However even the molybdenum catalyst 1 proved unable to catalyse ring closure
我们已经令人惊讶地表明,Schrock钼亚烷基催化剂1可以在含有硫化物基团的底物上进行闭环易位反应,将二烯丙基硫醚5转化为> 99%的2,5-二氢噻吩6。相比之下,通常对底物中的官能团更具耐受性的烷基亚烷基钌催化剂2对二烯丙基硫化物没有反应性。然而,即使钼催化剂1也证明不能催化四硫富瓦烯衍生物7的闭环。