Process for selective C-alkylation of phenols
    2.
    发明授权
    Process for selective C-alkylation of phenols 失效
    苯酚选择性C烷基化方法

    公开(公告)号:US4594460A

    公开(公告)日:1986-06-10

    申请号:US713691

    申请日:1985-03-19

    摘要: Substituted phenols of formula ##STR1## in which R.sub.1 is in an ortho or para position relative to the phenol function and denotes ##STR2## R.sub.2 denotes an acyclic radical optionally substituted by alkyl, hydroxy, alkoxycarbonyl, cyano or formyl, or a phenyl or naphthyl radical, and R denotes hydrogen or 1 to 4 substituents chosen from halogen, OH optionally in the form of ether or ester, alkyl, NO.sub.2, CHO optionally in the form of acetal, CH.sub.3 CO--, C.sub.6 H.sub.5 CO--, NH.sub.2, alkylamino, dialkylamino or alkoxycarbonyl, it being understood that 2 symbols R may form with the phenyl nucleus a condensed aromatic ring, which comprises reacting a butadiene of formula ##STR3## with a phenol for formula ##STR4## in water in the presence of a rhodium-based catalyst, a water-soluble phosphine and optionally an inorganic or organic base. The products of formula (I) are intermediates for the synthesis of vitamin E, antioxidants, perfumes or insecticides.

    摘要翻译: 其中R 1相对于苯酚官能团为邻位或对位的式(I)的取代酚,表示任选被烷基,羟基,烷氧基羰基,氰基或甲酰基取代的无环基,或 苯基或萘基,R表示氢或1至4个选自卤素,任选以醚或酯形式的OH的取代基,烷基,NO 2,CHO,任选以缩醛,CH 3 CO-,C 6 H 5 CO-,NH 2,烷基氨基, 二烷基氨基或烷氧基羰基,应理解为可以与苯基一起形成2个符号R的稠合芳香环,其包括在式(III)中的水中使式(VIII)的二醇与式 存在铑基催化剂,水溶性膦和任选的无机或有机碱。 式(I)的产物是用于合成维生素E,抗氧化剂,香料或杀虫剂的中间体。

    Process for the continuous bulk production of acrylic polymers
    3.
    发明授权
    Process for the continuous bulk production of acrylic polymers 失效
    连续批量生产丙烯酸聚合物的方法

    公开(公告)号:US5243097A

    公开(公告)日:1993-09-07

    申请号:US979344

    申请日:1992-11-20

    摘要: Acetylenic derivatives of general formula ##STR1## in which R.sub.1 denotes a hydrogen atom or a phenyl radical or a radical of general formula ##STR2## in which R.sub.2 and R.sub.3, which may be identical or different, denote a hydrogen atom or a saturated or unsaturated aliphatic radical, substituted if appropriate, or form together a cycloaliphatic radical, R.sub.4 denotes a hydrogen atom or a saturated or unsaturated aliphatic radical, a hydroxy, alkyloxy, methanesulphonyloxy, benzenesulpnonyloxy or p-toluenesulphonyloxy radical, R.sub.5 denotes a hydrogen atom or a saturated aliphatic radical, R.sub.6 denotes a hydrogen atom or a saturated or unsaturated aliphatic radical are made by reaction of an acetylenic derivative of general formulaR.sub.1 --C.tbd.C--H (III)with an allyl derivative of general formula ##STR3## in the presence of a cuprous salt and an anhydrous organic base. The compounds of formula (I) are useful in organic synthesis, in particular in the preparation of the vitamins A and E.

    摘要翻译: 其中R 1表示氢原子或苯基或通式为(II)的基团,其中R 2和R 3可以相同或不同,表示氢原子的通式(ⅩⅧ)(Ⅰ)的乙炔衍生物 羟基,烷氧基,甲磺酰氧基,苯磺酰氧基或对甲苯磺酰氧基,R5表示氢原子或饱和或不饱和脂肪族基团, 氢原子或饱和脂肪族基团,R6表示氢原子或饱和或不饱和脂肪族基团,通过将通式R 1 -C 3 3BOND CH(III)的炔属衍生物与通式为“IMAGE”的烯丙基衍生物 IV)或(VI)化合物在乙酸盐和无水有机碱的存在下反应。 式(I)化合物可用于有机合成,特别是维生素A和E的制备。

    Process for the preparation of compounds halogenated .alpha. to an
electron-attracting group
    6.
    发明授权
    Process for the preparation of compounds halogenated .alpha. to an electron-attracting group 失效
    制备吸电子基团卤化α的化合物的方法

    公开(公告)号:US4705650A

    公开(公告)日:1987-11-10

    申请号:US753532

    申请日:1985-07-10

    摘要: Compounds halogenated in the .alpha.-position to an electron-attracting group of formula ##STR1## in which X denotes a halogen atom, R denotes a hydrogen atom or a hydrocarbon radical or a radical --(CH.sub.2).sub.3 --COOR.sub.1 and Z denotes a radical --CHO, --COR.sub.2, --COOR.sub.3, --CONR.sub.4 R.sub.5, --CN, --SO.sub.2 R.sub.6, --NO.sub.2, --CO--(CH.sub.2)p--COO.sub.1 or --COO(CH.sub.2)p--COOR.sub.1 are made by a halogenating deacylation of a compound of formula ##STR2## in which R' denotes a hydrogen atom or a hydrocarbon radical, R" denotes a methyl radical and Z' denotes a radical --CHO, --COR.sub.2, --COOR.sub.3, --CONR.sub.4 R.sub.5, --CN, --SO.sub.2 R.sub.6 or --NO.sub.2 or R' and R" may form a radical --(CH.sub.2)-- or R' and R" may form a radical --CO--(CH.sub.2)p-- or --COO(CH.sub.2)p--, using an alkali metal alcoholate or an alkali or alkaline-earth metal carbonate and a halogenating agent.

    摘要翻译: 在其中X表示卤素原子,R表示氢原子或烃基或基团 - (CH 2)3 -COOR 1和Z(CH 2)3)的式(I)的吸电子基团的α位上卤化的化合物 表示基团-CHO,-COR2,-COOR3,-CONR4R5,-CN,-SO2R6,-NO2,-CO-(CH2)p-COO1或-COO(CH2)p-COOR1是通过卤代 式(II)化合物,其中R'表示氢原子或烃基,R“表示甲基,Z'表示基团-CHO,-COR 2,-COOR 3,-CONR 4 R 5,-CN, -SO 2 R 6或-NO 2或R'和R“可以形成基团 - (CH 2) - 或R',并且R”可以形成基团-CO-(CH 2)p - 或-COO(CH 2)p - ,使用 碱金属醇化物或碱金属或碱土金属碳酸盐和卤化剂。

    Process for preparing functionalized polyorganosiloxane resins by redistribution in the presence of triflic acid and/or of at least one derivative thereof and of a nonbasic inert filler
    10.
    发明申请
    Process for preparing functionalized polyorganosiloxane resins by redistribution in the presence of triflic acid and/or of at least one derivative thereof and of a nonbasic inert filler 审中-公开
    在三氟酸和/或其至少一种衍生物和非碱性惰性填料的存在下再分配制备官能化聚有机硅氧烷树脂的方法

    公开(公告)号:US20080255292A1

    公开(公告)日:2008-10-16

    申请号:US12142318

    申请日:2008-06-19

    IPC分类号: C08L83/06 C08K3/34

    CPC分类号: C08G77/10 C08G77/08

    摘要: The invention provides a method for preparing functionalized polyorganosiloxane resins (POS) comprising units M: (R3SiO1/2), Q: (SiO4/2) and M′: (YaR3-aSiO1/2) and optionally D: (R2SiO2/2) and/or D′: (RYSiO2/2) and T: (RSiO3/2) and/or T′: (YSiO3/2), wherein in said units R is C1-C10 alkyl or C8-C12 aryl and Y is a functional group (such as Si—H), by redistributing POS resins, using POSf bearing functional groups M′ and/or D′ and/or in the presence of an acid catalyst such as triflic acid or one of its derivatives and a non-basic inert filler: carbon black, diatomaceous earth, zeolite or acid or neutral oxide (Al2O3, Na2O, TiO2, MgO, silica). The invention also provides said catalyst system.

    摘要翻译: 本发明提供了一种制备官能化聚有机硅氧烷树脂(POS)的方法,所述聚有机硅氧烷树脂(POS)包含单元M:(R 3 SiO 2 1/2),Q:(SiO 4/2 )和M':(Y a a R 3-a SiO 1/2)和任选的D:(R SUB 和/或D':(RYSiO 2/2/2)和T:(RS 3 O 3/2/2) SUB)和/或T':(YSiO 3/2/2),其中在所述单元中R是C 1 -C 10烷基或 C 8 -C 12芳基,Y是官能团(如Si-H),通过重新分配POS树脂,使用具有POS的官能团M'和/或D 和/或在酸催化剂如三氟甲烷或其衍生物之一和非碱性惰性填料:碳黑,硅藻土,沸石或酸或中性氧化物(Al 2 O 3)存在下, O 3,Na 2 O,TiO 2,MgO,二氧化硅)。 本发明还提供了所述催化剂体系。