Then a hexacyclic-ring system formed as a result of molecular recombination, based on which further dehydrogenation occurred.
然后经过重排又转变成了一个具有碳碳双键的六员环体系，并在此基础上进一步发生脱氢反应。
2
The preparation method adopts the following steps: hexacyclic stone is crushed and ground into ultra fine powder body with the grain size larger than 1000 meshes;