发明授权
US4083873A Novel bisulfate and sulfate salts of bis(2-aminoethyl) ether and methods
of preparation
失效
二（2-氨基乙基）醚的新型硫酸氢盐和硫酸盐及其制备方法
- 专利标题： Novel bisulfate and sulfate salts of bis(2-aminoethyl) ether and methods of preparation
- 专利标题（中）： 二（2-氨基乙基）醚的新型硫酸氢盐和硫酸盐及其制备方法
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申请号： US730108申请日： 1976-10-06
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公开(公告)号： US4083873A公开(公告)日： 1978-04-11
- 发明人: Fred A. Sherrod , Bobby R. Ezzell
- 申请人： Fred A. Sherrod , Bobby R. Ezzell
- 申请人地址： MI Midland
- 专利权人： The Dow Chemical Company
- 当前专利权人： The Dow Chemical Company
- 当前专利权人地址： MI Midland
- 主分类号： C07C217/08
- IPC分类号： C07C217/08 ; C07C93/04
摘要：
The title compounds correspond to formulas O--CH.sub.2 CH.sub.2 NH.sub.3.sup..sym.).sub.2.2HSO.sub.4.sup..crclbar. and )--CH.sub.2 CH.sub.2 NH.sub.3.sup..sym.).sub.2 SO.sub.4.sup..crclbar.. They are prepared by (A) reacting by contacting HOCH.sub.2 CH.sub.2 NH.sub.3.sup..sym. HSO.sub.4.sup..crclbar. with .sup..sym. NH.sub.3 CH.sub.2 CH.sub.2 O--SO.sub.3.sup..crclbar. in the presence of a catalytic amount of sulfuric acid at a temperature greater than about 140.degree. C, thereby forming a reaction product comprising O--CH.sub.2 CH.sub.2 NH.sub.3.sup..sym.).sub.2. 2HSO.sub.4.sup..crclbar. ; and (B) reacting by contacting the reaction product of step (A) or O--CH.sub.2 CH.sub.2 NH.sub.3.sup..sym.).sub.2 . 2HSO.sub.4.sup..crclbar. with a methanol solution of HOCH.sub.2 CH.sub.2 NH.sub.2, thereby forming O--CH.sub.2 CH.sub.2 NH.sub.3.sup..sym.).sub.2 SO.sub.4.sup..crclbar. as a solid precipitate. The latter compound is extremely useful as a chemical intermediate in forming bis(2-aminoethyl) ether.
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