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    • 1. 发明申请
    • PREPARATION METHOD OF 4-AMINOMETHYLBENZOIC ACID
    • 4-氨基乙酰苯甲酸的制备方法
    • US20120296114A1
    • 2012-11-22
    • US13522465
    • 2010-12-09
    • Woo Sun Kim
    • Woo Sun Kim
    • C07C227/26
    • C07C227/04B01J21/18B01J23/40B01J23/44B01J23/75C07C249/08C07C229/38C07C251/48
    • The present invention relates to a preparation method of 4-aminomethylbenzoic acid comprising the following steps: preparing 4-carboxylbenzaldehyde or an alkyl ester thereof (methyl 4-formyl benzoate); reacting the 4-carboxylbenzaldehyde or an alkyl ester thereof (methyl 4-formyl benzoate) with hydroxyamine to oximate the same; and contact reducing 4-carboxylbenzaldehyde oxime or an alkyl ester oxime thereof obtained by the oximation, through hydrogen in a sodium hydroxide aqueous solution. Since methyl 4-hydroxyiminomethylbenzoate is reacted as a raw material in the presence of an alkali, hydrogen of a relatively low pressure can be used and a purification process is also simple, thereby enabling preparation of 4-aminomethylbenzoic acid with a low cost and high yield.
    • 本发明涉及4-氨基甲基苯甲酸的制备方法,包括以下步骤:制备4-羧基苯甲醛或其烷基酯(4-甲酰基苯甲酸甲酯); 使4-羧基苯甲醛或其烷基酯(4-甲酰基苯甲酸酯)与羟胺反应,使其氧化; 并通过氢氧化钠水溶液中的氢气将通过肟化得到的4-羧基苯甲醛肟或其烷基酯肟接触。 由于在碱存在下使4-羟基亚氨基甲基苯甲酸甲酯作为原料反应,所以可以使用相对低压的氢,并且纯化方法也很简单,从而能够以低成本和高产率制备4-氨基甲基苯甲酸 。
    • 3. 发明授权
    • Preparation method of 4-aminomethylbenzoic acid
    • 4-氨基甲基苯甲酸的制备方法
    • US08907127B2
    • 2014-12-09
    • US13522465
    • 2010-12-09
    • Woo Sun Kim
    • Woo Sun Kim
    • C07C227/04C07C249/08B01J21/18B01J23/40B01J23/44B01J23/75
    • C07C227/04B01J21/18B01J23/40B01J23/44B01J23/75C07C249/08C07C229/38C07C251/48
    • The present invention relates to a preparation method of 4-aminomethylbenzoic acid comprising the following steps: preparing 4-carboxylbenzaldehyde or an alkyl ester thereof (methyl 4-formyl benzoate); reacting the 4-carboxylbenzaldehyde or an alkyl ester thereof (methyl 4-formyl benzoate) with hydroxyamine to oximate the same; and contact reducing 4-carboxylbenzaldehyde oxime or an alkyl ester oxime thereof obtained by the oximation, through hydrogen in a sodium hydroxide aqueous solution. Since methyl 4-hydroxyiminomethylbenzoate is reacted as a raw material in the presence of an alkali, hydrogen of a relatively low pressure can be used and a purification process is also simple, thereby enabling preparation of 4-aminomethylbenzoic acid with a low cost and high yield.
    • 本发明涉及4-氨基甲基苯甲酸的制备方法,包括以下步骤:制备4-羧基苯甲醛或其烷基酯(4-甲酰基苯甲酸甲酯); 使4-羧基苯甲醛或其烷基酯(4-甲酰基苯甲酸酯)与羟胺反应,使其氧化; 并通过氢氧化钠水溶液中的氢气将通过肟化得到的4-羧基苯甲醛肟或其烷基酯肟接触。 由于在碱存在下使4-羟基亚氨基甲基苯甲酸甲酯作为原料反应,所以可以使用相对低压的氢,并且纯化方法也很简单,从而能够以低成本和高产率制备4-氨基甲基苯甲酸 。
    • 4. 发明授权
    • Polyalkylene guanidine salts or polyalkylene biguanidine salts having a
branched silane compound, method for preparing same and uses thereof
    • 具有支链硅烷化合物的聚亚烷基胍盐或聚亚烷基双胍盐,其制备方法和用途
    • US6031119A
    • 2000-02-29
    • US889514
    • 1997-07-08
    • Byung-Hyoung LeeWoo-Sun KimYoung-Jun KimSang-Gu BangKwang-Min LimSang-Rak ChoiKeum-Chan Joo
    • Byung-Hyoung LeeWoo-Sun KimYoung-Jun KimSang-Gu BangKwang-Min LimSang-Rak ChoiKeum-Chan Joo
    • A01N55/00A01N55/10C08G73/00C08G73/02C08L79/00A61K31/155
    • C08G73/024A01N55/00C08G73/00C08G73/0253C08G73/0293
    • Polyalkylene guanidine salts or polyalkylene biguanidine salts having a branched silane compound of formula I show excellent antimicrobial activity and can be applied to various materials including fibers, wood, paper, glass, resins and metals: ##STR1## wherein A is oxyethylene, oxypropylene, oxybutylene, oxystyrene, diphenylsulfone, diphenyl sulfide or alkylamide, which repeating number is 1 to 100,000, or straight or branched alkyl chain containing 1 to 20 carbon atoms;Y represents a blank, HCl, HBr, HI, HNO.sub.3, acetic acid, benzoic acid, dehydroacetic acid, propionic acid, gluconic acid, sorbic acid, phosphoric acid, fumaric acid, maleic acid, carbonic acid, sulfuric acid or para-toluene sulfonic acid;B is a straight or branched alkyl chain containing 0 to 20 carbon atoms;Z is an alkoxy group such as methoxy, ethoxy, propoxy, isopropoxy, butoxy, pentoxy, hexoxy, octoxy or decoxy, chloride, bromide, iodide, acetate, sulfate, or paratoluenesulfonate;X is chloride, bromide, iodide, acetate, sulfate, paratoluenesulfonate, methoxy, ethoxy, propoxy, isopropoxy, butoxy, pentoxy, hexoxy, octoxy, or decoxy;x is 1 or 2;m is an integer of 0 or more; andn is an integer of 1 or more with a proviso that the ratio of m to n ranges from 0.01 to 100 in case of m+n=4 and when m is 0, n is an integer of 4 or more.
    • 具有式I的支化硅烷化合物的聚亚烷基胍盐或聚亚烷基双胍盐显示出优异的抗微生物活性,并且可以应用于包括纤维,木材,纸,玻璃,树脂和金属在内的各种材料:其中A是氧乙烯,氧丙烯,氧丁烯,氧苯乙烯, 重复数为1〜100,000的二苯砜,二苯硫醚或烷基酰胺,或含有1〜20个碳原子的直链或支链烷基链; Y代表空白,HCl,HBr,HI,HNO3,乙酸,苯甲酸,脱氢乙酸,丙酸,葡萄糖酸,山梨酸,磷酸,富马酸,马来酸,碳酸,硫酸或对甲苯磺酸 酸; B是含0至20个碳原子的直链或支链烷基链; Z是烷氧基如甲氧基,乙氧基,丙氧基,异丙氧基,丁氧基,戊氧基,己氧基,辛氧基或脱氧,氯化物,溴化物,碘化物,乙酸盐,硫酸盐或对甲苯磺酸盐; X是氯化物,溴化物,碘化物,乙酸盐,硫酸盐,对甲苯磺酸盐,甲氧基,乙氧基,丙氧基,异丙氧基,丁氧基,戊氧基,己氧基,辛氧基或脱氧; x为1或2; m为0以上的整数, n为1以上的整数,条件是在m + n = 4的情况下,m与n的比率为0.01〜100,当m为0时,n为4以上的整数。