The average molecular weight of polyoxytetramethylene glycol could be flexibly controlled by varying the...
未反应的四氢呋喃经适当处理后可以回收循。
The average molecular weight of polyoxytetramethylene glycol could be flexibly controlled by varying the...
未反应的四氢呋喃经适当处理后可以回收循。
119.0 g of cyclopentyl bromide and 19.4 g of magnesium are reacted in ether or THF to give a cyclopentyl Grignard reagent.
119克戊溴和19.4克镁在空气中或者四氢呋喃中加
戊格林尼亚试剂作发生反应。
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