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公开(公告)号:KR1019910002282B1
公开(公告)日:1991-04-11
申请号:KR1019880002867
申请日:1988-03-18
Applicant: 한국과학기술원
IPC: C07C319/14
Abstract: A process for preparing indene acetic acid derivs. of formula (I) comprises (a) reacting a cpd. of formula (II) with Zn powder and ethylbro-moacetate in the mixed solvent of a nonpolar solvent selected from benzene, toluene xylene, or ligroin, (b) treating (c) the reactant with H2SO4 to produce a cpd. of formula (III), and reacting (III) with a cpd. of formula (IV) in methanol or ethanol. (I) are useful as non-steroidal antipyretic analgesics.
Abstract translation: 一种制备茚乙酸衍生物的方法。 式(I)的化合物包括(a)使cpd反应。 (II)的Zn(II)化合物与选自苯,甲苯二甲苯或者石油英的非极性溶剂的混合溶剂中的乙基布洛莫乙酸乙酯反应,(b)用H 2 SO 4处理(c)反应物以产生cpd。 的式(III),和(III)与cpd反应。 的式(IV)的甲醇或乙醇。 (I)可用作非甾体解热镇痛药。
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公开(公告)号:KR1019930009041B1
公开(公告)日:1993-09-22
申请号:KR1019900010467
申请日:1990-07-11
Applicant: 한국과학기술원
IPC: C07C275/30
Abstract: The method for preparing 3,4,4'-trichlorocarbanilide of formula (I) comprises reacting 3,4-dichloroaniline of formula (II) with 4- chlorophenyl carbamoyl chloride of formula (III) in an organic solvent in the presence of a base at 20-110 deg.C. Pref. the organic solvent is selected from benzene or toluene; the base is selected from pyridine, picoline, triethylamine, sodium carbonate or potassium carbonate. The cpd. (I) is useful as an antiseptic.
Abstract translation: 制备式(I)的3,4,4'-三氯碳酰苯胺的方法包括使式(II)的3,4-二氯苯胺与式(III)的4-氯苯基氨基甲酰氯在有机溶剂中在碱的存在下反应 在20-110℃。 县。 有机溶剂选自苯或甲苯; 碱选自吡啶,甲基吡啶,三乙胺,碳酸钠或碳酸钾。 cpd。 (I)可用作防腐剂。
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公开(公告)号:KR1019900004680B1
公开(公告)日:1990-07-02
申请号:KR1019880004737
申请日:1988-04-25
Applicant: 한국과학기술원
IPC: C11B3/00
Abstract: A method for refining and decolorizing wax obtd. from rice bran comprises (a) hydrolyzing the wax with a Ni-pellet as a catalyst at 150-230 deg. C and 7-10 atm., for 4 hrs. (b) oxidizing it with ClO2 soln. in the presence of methylethylketone at 58-80 deg. C for 24 hrs., (c) removing water from it and adding activated clay as decolorizing agent, and heating it at 65-70 deg. C and cooling it at 0 deg.C.
Abstract translation: 一种精炼和脱色蜡的方法。 来自米糠的方法包括:(a)在150-230度用Ni颗粒作为催化剂水解蜡。 C和7-10 atm,4小时。 (b)用ClO2溶液氧化。 在甲基乙基酮的存在下在58-80度。 (c)从其中除去水并加入活性粘土作为脱色剂,并在65-70℃加热。 并在0℃冷却。
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公开(公告)号:KR1019880002606B1
公开(公告)日:1988-12-04
申请号:KR1019880012224
申请日:1988-09-21
Applicant: 한국과학기술원
IPC: C07F7/18
Abstract: Bis(trimethylsilyl)phosphite (I) was prepd.. Thus, H3PO3 (1 mole) was reacted with Me3SiCl (1 mole) at 60≦̸C and later with Me3SiN(H) SiMe3 (1.2 mole) for 1hr with stirring. The liquid product was vacuum-concd. at 77-79↿C and 10mmHg to give 86% (I).
Abstract translation: 因此,在搅拌下,将H 3 PO 3(1摩尔)在60℃,然后用Me 3 SiN(H)SiMe 3(1.2摩尔)与Me 3 SiCl(1摩尔)反应1小时。 液体产物是真空浓缩的。 在77-79℃和10mmHg下得到86%(I)。
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公开(公告)号:KR100069253B1
公开(公告)日:1993-12-29
申请号:KR1019900010467
申请日:1990-07-11
Applicant: 한국과학기술원
IPC: C07C275/30
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公开(公告)号:KR1019920002529A
公开(公告)日:1992-02-28
申请号:KR1019900010467
申请日:1990-07-11
Applicant: 한국과학기술원
IPC: C07C275/30
Abstract: 내용 없음.
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