Process for preparing aromatic olefins in the presence of palladium catalysts comprising phosphite ligands
    6.
    发明授权
    Process for preparing aromatic olefins in the presence of palladium catalysts comprising phosphite ligands 失效
    在含有亚磷酸酯配体的钯催化剂存在下制备芳族烯烃的方法

    公开(公告)号:US06291383B1

    公开(公告)日:2001-09-18

    申请号:US09326404

    申请日:1999-06-04

    IPC分类号: B01J3100

    摘要: The invention relates to process for preparing monofunctional, bifunctional or/and polyfunctional olefins of the formulae (Ia), (Ib), (Ic) or/and (Id), where R1 to R3 are, independently of one another, hydrogen, (C1-C8)-alkyl, CN, COOH, COO-alkyl-(C1-C8), CO-alkyl-(C1-C8), aryl-(C6-C10), COO-aryl-(C6-C10), CO-aryl-(C6-C10), O-alkyl-(C1-C8), O—CO-alkyl-(C1-C8) or N-alkyl2-(C1-C8) and aryl is an aromatic radical containing up to 14 carbon atoms, where aryl is as defined above, and Ar is a heteroaromatic, by reacting haloaromatics, haloolefins or/and heterohaloaromatics of the formulae (IIa), (IIb), (IIc) or/and (IId) with olefins of the formula (III), wherein a mixture of a palladium(0) complex or a palladium(II) salt with phosphite ligands of the formulae (IVa) or/and (IVb) is used as catalyst.

    摘要翻译: 本发明涉及制备式(Ia),(Ib),(Ic)或/和(Id)的单官能,双功能或/和多官能烯烃的方法,其中R 1至R 3彼此独立地为氢,( C 1 -C 8)烷基,CN,COOH,COO-烷基 - (C 1 -C 8),CO-烷基 - (C 1 -C 8),芳基 - (C 6 -C 10),COO-芳基 - (C 6 -C 10) 芳基 - (C 6 -C 10),O-烷基 - (C 1 -C 8),O-CO-烷基 - (C 1 -C 8)或N-烷基-2-(C 1 -C 8)芳基是芳族基团, 碳原子,其中芳基如上定义,Ar是杂芳族化合物,通式(IIa),(IIb),(IIc)或/和(IId)的卤代芳烃,卤代烯烃或/和杂卤代芳烃与式 (III),其中使用钯(0)配合物或钯(II)盐与式(IVa)或/和(IVb)的亚磷酸酯配体的混合物作为催化剂。

    Process for catalytically preparing aromatic or heteroaromatic nitriles
    9.
    发明授权
    Process for catalytically preparing aromatic or heteroaromatic nitriles 有权
    用于催化制备芳族或杂芳族腈的方法

    公开(公告)号:US08314243B2

    公开(公告)日:2012-11-20

    申请号:US11986398

    申请日:2007-11-21

    IPC分类号: C07D211/78 A01N43/38

    摘要: A process is described for catalytically preparing optionally substituted aromatic or heteroaromatic nitrites of the general formula (I) Ar—CN  (I) by reacting the corresponding aryl halides of the general formula (II) Ar—X  (II) in which X is chlorine, bromine, iodine, triflate, nonaflate, mesylate or tosylate and Ar is an optionally substituted aromatic or heteroaromatic radical, characterized in that the reaction is performed in the presence of a palladium compound, a phosphine of the general formula (III) or (IV) where R is an alkyl radical and R′, R″ and R′″ are each an alkyl radical or an aryl radical or heteroaryl radical and A is an alkylene or arylene radical, and potassium hexacyanoferrate(II) or potassium hexacyanoferrate(III), optionally in a solvent and optionally with addition of a base.

    摘要翻译: 描述了通过使通式(II)Ar-X(II)的相应芳基卤反应其中X为氯的方法催化制备通式(I)Ar-CN(I)的任选取代的芳族或杂芳族亚硝酸盐的方法 溴,碘,三氟甲磺酸酯,壬酸酯,甲磺酸酯或甲苯磺酸酯,Ar是任选取代的芳族或杂芳族基团,其特征在于反应在钯化合物,通式(III)或(IV) )其中R是烷基,R',R“和R”“各自是烷基或芳基或杂芳基,A是亚烷基或亚芳基,六氰基铁酸钾(II)或六氰基铁酸钾(III) ,任选地在溶剂中和任选地加入碱。