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US09127030B2 Method for the preparation of biphephos 有权
制备双磷的方法

Method for the preparation of biphephos
摘要:
The invention relates to a process for producing 6,6′-[(3,3′-di-tert-butyl-5,5′-dimethoxy-1,1′-biphenyl-2,2′diyl)bis(oxy)]bis(dibenzo[d,f][1,3,2]dioxaphosphepine), abbreviated to biphephos (see formula 1), with low chlorine content.
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