本文描述了一种简单高效的制备一系列N-烷基-3-硼吡啶铵盐的方法,该方法需要将3-吡啶硼酸新戊二醇酯和相应的烷基卤化物暴露于微波辐射下,然后进行硼酸酯水解。采用的技术大大缩短了反应时间,防止了热降解和副产物的形成。所得硼吡啶铵盐的水溶液在宽pH范围内以及在pH 10.0的氢氧化物存在下,在室温下稳定72小时。
本文描述了一种简单高效的制备一系列N-烷基-3-硼吡啶铵盐的方法,该方法需要将3-吡啶硼酸新戊二醇酯和相应的烷基卤化物暴露于微波辐射下,然后进行硼酸酯水解。采用的技术大大缩短了反应时间,防止了热降解和副产物的形成。所得硼吡啶铵盐的水溶液在宽pH范围内以及在pH 10.0的氢氧化物存在下,在室温下稳定72小时。
A simple and efficient protocol for the preparation of a series of N-alkyl-3-boronopyridinium salts is described which requires exposure of 3-pyridineboronic acid neopentylglycol ester and corresponding alkyle halide to microwave irradiation followed by boronic ester hydrolysis. The technique employed drastically reduces the reaction time and prevents thermal degradation and the formation of side products. Water solutions of the obtained boronopyridinium salts are shown to be stable at room temperature in wide pH range as well as in the presence of hydrogen peroxide at pH 10.0 for 72 h.
本文描述了一种简单高效的制备一系列N-烷基-3-硼吡啶铵盐的方法,该方法需要将3-吡啶硼酸新戊二醇酯和相应的烷基卤化物暴露于微波辐射下,然后进行硼酸酯水解。采用的技术大大缩短了反应时间,防止了热降解和副产物的形成。所得硼吡啶铵盐的水溶液在宽pH范围内以及在pH 10.0的氢氧化物存在下,在室温下稳定72小时。