chromic

1.Oxidation of tropine with chromic oxide gave tropinone which can be quaternized to 5 in quantitative yield.

为了使反的研究简,托品水解为托品醇、再氧为托品酮,托品酮季胺盐与氢钠反。

2.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,过氧物、硝酸、氧和臭氧等各类氧剂对性氧以及的阳极电氧研究状况。

3.Through the adjust of the vitriol-chrome-acid and trivalence chromic,can from the net contain additive common chromeplate liquid gain wide bright electric current density bound;

通过对硫酸铬酸比和三价铬的认真调整,能从不含添加剂的普通镀铬液获得宽的光亮电流密度范围;

4.3.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 ,苊可以完全转为苊酮。