发明名称 |
PREPARATION AND ISOLATION OF MINERAL ACID SALT OF AN AMINO ACID METHYL ESTER |
摘要 |
A cyclical process for producing and isolating a mineral acid salt of an amino acid methyl ester in high purity and yield from the reaction solution produced by esterifying an amino acid with methanol in methanol in the presence of a mineral acid, by cooling the resulting reaction solution to precipitate crystals of the mineral acid salt; filtering the crystals; drying the isolated wet crystals or washing with another organic solvent; and recycling the filtrate for reuse in the esterification reaction. |
申请公布号 |
AU4732589(A) |
申请公布日期 |
1990.07.05 |
申请号 |
AU19890047325 |
申请日期 |
1989.12.28 |
申请人 |
MITSUI TOATSU CHEMICALS, INCORPORATED |
发明人 |
NAME NOT GIVEN |
分类号 |
C07C227/18;C07C227/40 |
主分类号 |
C07C227/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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