regiosele相关论文
金(I) 的机制催化 1-(1-alkynyl ) 的 cycloaddition 有 nucleophiles 的 cyclopropyl 酉同类用密度被调查了在 B3LYP/6-31G 的功......
2,6-Di-O-acetyl sucrose was regioselective synthesized by using dibutyltin oxide in about 60% yield. The structure of ac......