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1)  1,3-Dibromobutane
1,3-二溴丁烷
2)  butane,1,3-dibromo-
1,3一二溴丁烷
3)  1,3-dibromopropane
1,3-二溴丙烷
1.
If the few potassium iodide was added to the O-alkylation of 2,5-dimethylphenol and 1,3-dibromopropane,the reactive time would decrease and the yields would reach to 67.
在 2 ,5 -二甲基苯酚与 1,3-二溴丙烷的O -烷基化反应中加入少量碘化钾 ,反应时间可大大缩短 ,且产率亦可达 6 7。
2.
In NaOH-H_2O, NaOH-toluene-DMSO or anhydrous K_2CO_3-acetone the O-alkylation of 2,5- dimethylphenol with 1,3-dibromopropane give 1-(2,5-dimethyl phenoxyl) -3-bromopropane,the yield is 59.
2,5-二甲苯酚与1,3-二溴丙烷在NaOH-H_2O,NaOH-甲苯-DMSO或无水K,CO_3-丙酮中反应,产物均为1-(2,5-二甲苯氧基)-3-溴丙烷,产率分别为59。
4)  dibromobutane
二溴丁烷
5)  1,4-dibromobutane
1,4-二溴丁烷
1.
Polymer supported quaternary ammonium was synthesized from polystyrene supported diethylene glycol with 6% crossing linkage,through grafting 1,4-dibromobutane,followed by reaction with tributyl amine.
以交联度为6%的聚苯乙烯固载二甘醇树脂为原料,经接枝1,4-二溴丁烷,然后与三丁胺反应,合成季铵盐型的三相相转移催化剂。
2.
Used 1,4-butanediol and the hydrobromic acid synthesized with solid superacid catalyst SO~(2-)4/MXOY to catalysis 1,4-dibromobutane.
以1,4-丁二醇和氢溴酸为原料,在SO42-/MxOy固体超强酸的催化下合成1,4-二溴丁烷。
3.
An excess of 1,4-dibromobutane reacted with trimethylamine aqueous solution in THF/MeOH at 0~20 ℃,after that the solvent and 1,4-dibromobutane were recovered,4-bromobutyltrimethylammonium bromide and the by-product bisquat salt were separated by using the fractional crystallization.
三甲胺水溶液与过量1,4-二溴丁烷在0~25℃反应,回收溶剂和过量1,4-二溴丁烷后,采用分步结晶的方法将产物4-溴丁基三甲基溴化铵与副产物双季铵盐分开,再经重结晶可得到纯产品,进一步用元素分析、IR、1HNMR确证。
6)  2,3-dibromobutane
2,3-二溴丁烷
补充资料:1,3-二溴丁烷
分子式:C4H8Br2
分子量:215.93
CAS号:107-80-2

性质:该品为无色透明液体。沸点101.6℃,相对密度1.2758(d4),折光率1.508。

制备方法:暂无

用途:有机合成中间体。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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