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    • 42. 发明授权
    • Trifluoromethylaminobenzenes containing fluorine and/or chlorine and
their preparation
    • 含有氟和/或氯的三氟甲基苯并噻吩及其制备方法
    • US5082971A
    • 1992-01-21
    • US487339
    • 1990-03-01
    • Albrecht Marhold
    • Albrecht Marhold
    • C07C211/52C07C67/00C07C209/00C07C209/10C07C209/36C07C211/46C07C211/47
    • C07C209/365C07C211/52
    • Trifluoromethylaminobenzenes containing fluorine and/or chlorine, in which the trifluoromethyl groups are situated in the 1-position, the amino groupa) is situated in the 2-position and a fluorine atom is situated in the 6-position or two fluorine atoms are situated in the 5- and 6-position or a fluorine atom is situated in the 5-position and a chlorine atom is situated in the 6-position orb) is situated in the 3-position and a fluorine atom is situated in the 2-position or two fluorine atoms are situated in the 2- and 6-position or a chlorine atom is situated in the 2-position and a fluorine atom is situated in the 6-position orc) is situated in the 4-position and a fluorine atom is situated in the 2-position and additionally a further fluorine atom is situated in the 3- or 6-position or two further fluorine atoms are situated in the 5- and 6-position or a further fluorine atom is situated in the 6-position and two chlorine atoms are situated in the 3- and 5-position or a chlorine atom is situated in the 3-position to two chlorine atoms are situated in the 3- and 5-position ord) is situated in the 4-position and two fluorine atoms are situated in the 3- and 5-position or two chlorine atoms are situated in the 2- and 3-position or a fluorine atom is situated in the 3-position and a chlorine atom is situated in the 5-position ore) is situated in the 2-, 3- or 4-position and three fluorine atoms are situated on the aromatic ring and a process for their preparation.
    • 含有氟和/或氯的三氟甲基氨基苯,其中三氟甲基位于1-位,氨基a)位于2-位,氟原子位于6-位,或两个氟原子位于 在5-和6-位或氟原子位于5-位且氯原子位于6-位或b)位于3-位,氟原子位于2-位, 位置或两个氟原子位于2-和6-位,或氯原子位于2-位,氟原子位于6-位,或c)位于4-位,氟 原子位于2-位,并且另外的氟原子位于3-或6-位,或另外两个氟原子位于5-和6-位,或另外的氟原子位于6-位, 位置和两个氯原子位于3-和5-位或氯 原子位于3-位,两个氯原子位于3-和5-位,或d)位于4-位,两个氟原子位于3-和5-位或两个氯原子 位于2-和3-位,或氟原子位于3-位,氯原子位于5-位或e-位于2-,3-或4-位,三 氟原子位于芳环上,其制备方法。
    • 44. 发明授权
    • Process for catalytically reducing nitroaromatic compounds
    • 催化还原硝基芳族化合物的方法
    • US4535162A
    • 1985-08-13
    • US504748
    • 1983-06-16
    • Giovanni MestroniGrazia ZassinovichEnzo Alessio
    • Giovanni MestroniGrazia ZassinovichEnzo Alessio
    • C07D213/18B01J31/00C07B61/00C07C67/00C07C209/00C07C209/36C07C211/46C07C211/47C07C211/51C07C211/52C07D213/22C07D471/04C07D215/38C07D211/72C07D239/02
    • C07C209/36
    • A process is herein described for catalytically reducing nitroaromatic compounds by displacement of hydrogen from carbon monoxide and water or from synthesis gas to nitroaromatic compounds, the catalytic reduction being catalyzed by complexes of rhodium, iridium, ruthenium and osmium; said process is characterized in that the CO+H.sub.2 O system or the (CO+H.sub.2)+H.sub.2 O system is caused to react with a nitroaromatic compound of formula:Ar--(NO.sub.2).sub.x (I)wherein Ar is an aryl or hetero-aryl group, also substituted by inert groups; x is an integer from 1 to 3, in the presence of a complex catalyst of formula:[MChel(L).sub.2 ].sup.+ X.sup.- (II)or of a catalyst composed by carbonyl compounds and chelants of formula:Mz(CO).sub.y +nChel (III)wherein M=Rh, Ir, Ru, Os; "Chel" is a bidentate or tridentate aromatic nitrogen chelating compound; "L" is a molecule of carbon monoxide or of an olefin or half a molecule of a diolefin; X.sup.- is an anion selected from Cl.sup.-, Br.sup.-, I.sup.-, PF.sub.6.sup.-, BF.sub.4.sup.-, B(C.sub.6 H.sub.5).sub.4.sup.-, CO.sub.3.sup.-- and HCO.sub.3.sup.- ; z, y are integers with n being an integer or a fractional number, at temperatures ranging from about 25.degree. C. to 250.degree. C., at a carbon monoxide pressure between 1 and 150 atmospheres.The products obtained from the hydrogenation of the starting nitroaromatic compounds consist of arylamines in general and are utilized as intermediates for the organic syntheses in the field of fine chemicals.
    • 本文描述了通过将氢从一氧化碳和水或从合成气置换为硝基芳族化合物来催化还原硝基芳族化合物的方法,催化还原由铑,铱,钌和锇的络合物催化; 所述方法的特征在于使CO + H 2 O体系或(CO + H 2)+ H 2 O体系与式Ar-(NO 2)x(I)的硝基芳族化合物反应,其中Ar是芳基或杂芳基 组,也被惰性基团取代; 在具有下式的复合催化剂存在下,x是1至3的整数:[MChel(L)2] + X-(II)或由羰基化合物和下式的螯合剂组成的催化剂:Mz(CO)y + nChel(III)其中M = Rh,Ir,Ru,Os; “Chel”是二齿或三齿芳族氮螯合化合物; “L”是一氧化碳或烯烃或半分子二烯烃的分子; X-是选自Cl-,Br-,I-,PF6-,BF4-,B(C6H5)4-,CO3-和HCO3-的阴离子; z,y是在约25℃至250℃的温度范围内,在1至150个大气压的一氧化碳压力下,n为整数或分数的整数。 从起始硝基芳族化合物的氢化获得的产物通常由芳基胺组成,并用作精细化学品领域的有机合成的中间体。