3,3'-Bis(1,1-dimethylethyl)-5,5'-dimethoxy(1,1'-biphenyl)-2,2'-diol → Pyridine ethyl acetate

関与物質

反応条件

反応手順

In a 250 ml Schlenk, under protective gas, 10.07 g (31.0 mmol) of 2,2′-bis(3,5-dimethylphenol)chlorophosphite were dissolved in 20 ml of degassed ethyl acetate and heated to 45° C. In a second Schlenk (50 ml), 5.54 g (15 mmol) of 3,3′-di-tert-butyl-5,5′-dimethoxy-[1,1′-biphenyl]-2,2′-diol were dissolved in 26 ml of ethyl acetate and 5.2 ml of degassed pyridine. Subsequently, the biphenol/pyridine solution was slowly added dropwise to the chlorophosphite solution within 30 minutes. The solution was stirred at 45° C. overnight.

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