国产精品SP调教打屁股,亚洲美女国产精品久久久久久久久,人妻尝试又大又粗久久,韩国19禁无遮挡啪啪无码网站

Technical articles技術(shù)文章
首頁 > 技術(shù)文章 >微波輻射可提高菲啶的合成產(chǎn)量

微波輻射可提高菲啶的合成產(chǎn)量

 更新時(shí)間:2012-10-31 點(diǎn)擊量:1547

        Microwave irradiation dramatically increases the isolated yield of an alkyne cyclotrimerization step when compared to conventional heating methods. The flexibility of being able to perform a reaction in either an open or sealed vessel format provides the ability to add all reagents at the start of the reaction to take advantage of a high temperature/high pressure environment or add reagents during the reaction, reducing byproduct formation.

        與傳統(tǒng)加熱方法相比,微波輻射大大增加了alkyne cyclotrimerization分離產(chǎn)量。在敞口和密封的條件下,均可進(jìn)行反應(yīng)。在反應(yīng)開始前,可添加所有試劑反應(yīng)試劑,在高溫高壓環(huán)境或添加試劑反應(yīng)時(shí),減少副產(chǎn)物的形成。


 

更多詳情,請培安公司:
:北京: 上海:  成都: 廣州:
: sales@pynnco.comwww.pynnco.com