1. Oxidation of tropine with chromic oxide gave tropinone which can be quaternized to 5 in quantitative yield.
   为了使反应的研究简化,将阿托品水解为托品醇、再氧化为托品酮,托品酮季胺盐与氢化钠反应。
2. In the presence of acetic acid and polyethylene glycol, chromic anhydride and acenaphthene react under mild condition and acenaphthene can completely convert into acenaphthenone.
   在醋酸、聚乙二醇存在下 ,铬酸酐和苊在温和的条件下反应 ,苊可以完全转化为苊酮。
3. The selective oxidation of ethers by chromic reagent, peroxide, nitric acid, oxygen and ozonide, as well as the ethers anodic oxidation are particularly introduced.
   主要介绍了铬(Ⅵ)类试剂,过氧化物、硝酸、氧和臭氧等各类氧化剂对醚选择性氧化以及醚的阳极电氧化研究状况。

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