提出了可工业化的噻吩乙醇的合成方法,并详细地讨论了降低副产物生成的途径。对溴化和格氏化条件进行了研究。
This works put forward a method of synthesis of thiophene alcohol and discuss carefully the way of reducing by-product and condition of brominating and Gall's.
以乙醇为溶剂,碘化钠为催化剂,由金属钠、对苯二酚和溴丁烷合成了1 ,4 -二丁氧基苯。
With ethyl alcohol as solvent and sodium iodide as catalyst, 1,4-dibutoxybenzene was synthesized from metal sodium, hydroquinone and n-butyl bromide.
目的建立溴芬酸钠原料中二氯甲烷、甲苯、1,2-二甲氧基乙烷、乙酸乙酯、乙醇残留量测定方法。
Objective To establish a method for detection of dichloromethane, 1,2-dimethoxyethane, toluene, ethyl acetate and ethanol in bromfenac sodium.
本发明涉及一种乙醇化噻托溴铵结晶及其制备方法和药物组合物。
The present invention relates to alcoholated tiotropium bromide crystal and its preparation process and medicine composition.
利用三乙醇胺(TEA)、溴化十六烷基三甲胺(C TMAB)分别改性蜂窝煤渣,研究了改性煤渣吸附水中对硝基苯酚的性能。
The adsorption characteristics ofp -nitrophenol in wastewater on honeycomb briquet slag modified by triethanolamine(TEA) or hexadecyl trimethylamine bromide(CTMAB) were studied.
利用三乙醇胺(TEA)、溴化十六烷基三甲胺(C TMAB)分别改性蜂窝煤渣,研究了改性煤渣吸附水中对硝基苯酚的性能。
The adsorption characteristics ofp -nitrophenol in wastewater on honeycomb briquet slag modified by triethanolamine(TEA) or hexadecyl trimethylamine bromide(CTMAB) were studied.
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