作业帮谁懂英语化学,帮忙翻译,谢谢!The connectors 2 and 5 have high thermal stability,but their solubility in most organic solvents, such as THFor diethyl ether, is very limited. Again, chloroform,methylene chloride, and to a lesser degree, DMF,
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谁懂英语化学,帮忙翻译,谢谢!The connectors 2 and 5 have high thermal stability,but their solubility in most organic solvents, such as THFor diethyl ether, is very limited. Again, chloroform,methylene chloride, and to a lesser degree, DMF,
谁懂英语化学,帮忙翻译,谢谢!
The connectors 2 and 5 have high thermal stability,
but their solubility in most organic solvents, such as THF
or diethyl ether, is very limited. Again, chloroform,
methylene chloride, and to a lesser degree, DMF, are
suitable solvents. Both derivatives can be dissolved in 2
M hydrochloric acid and reextracted from the aqueous
layer after basification. The separation of the trialkylated compounds 3 and 4 from byproducts was more challenging
and was finally accomplished by HPLC. These
connectors also possess high thermal stability and their
solubility in organic solvents is generally improved, but
only 4 dissolves reasonably well in THF.
谁懂英语化学,帮忙翻译,谢谢!The connectors 2 and 5 have high thermal stability,but their solubility in most organic solvents, such as THFor diethyl ether, is very limited. Again, chloroform,methylene chloride, and to a lesser degree, DMF,
翻译：
连接器2和5有高耐热性,但他们的可溶性在多数有机溶液,例如THF或二乙基醚,是非常有限的.再次,三氯甲烷,甲叉二氯,和稍微,DMF,是适当的溶剂.两种衍生物在2 M盐酸可以被溶化和从含水层数被反萃取在碱化
以后.分离三烃基苯化合物3,并且4从副产物更加富挑战性和由HPLC最后完成.这些连接器也拥有高耐热性,并且在有机溶液一般改进他们的可溶性,但仅4在THF合理地很好溶化.