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    • 1. 发明授权
    • Process for the nitration of diphenylethers
    • 硝基二苯醚的工艺
    • US6028219A
    • 2000-02-22
    • US901545
    • 1997-07-28
    • John Heathcote AthertonStephen Martin BrownJames Peter MuxworthyMartin Lennon
    • John Heathcote AthertonStephen Martin BrownJames Peter MuxworthyMartin Lennon
    • C07B43/02C07C201/08C07C205/38C07C205/59C07C205/60C07C303/40C07C311/51C07C205/06
    • C07C201/08C07C303/40
    • A process for the preparation of a compound of general formula I: ##STR1## wherein: R.sup.1 is hydrogen or C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.6 alkenyl or C.sub.2 -C.sub.6 alkynyl, any of which may optionally be substituted with one or more substituents selected from halogen and OH; or COOR.sup.4, COR.sup.6, CONR.sup.4 R.sup.5 or CONHSO.sub.2 R.sup.4 ;R.sup.4 and R.sup.5 are each independently hydrogen or C.sub.1 -C.sub.4 alkyl optionally substituted with one or more halogen atoms;R.sup.6 is a halogen atom or a group R.sup.4 ;R.sup.2 is hydrogen or halo;R.sup.3 is C.sub.1 -C.sub.4 alkyl, C.sub.2 -C.sub.4 alkenyl or C.sub.2 -C.sub.4 alkynyl, any of which may optionally be substituted with one or more halogen atoms; or halo;the process comprising reacting a compound of general formula II: ##STR2## wherein R.sup.1, R.sup.2 and R.sup.3 are as defined for general formula I; with a nitrating agent comprising nitric acid or a mixture of nitric and sulphuric acids in the presence of an organic solvent and in the presence of acetic anhydride, characterized in that the molar ratio of acetic anhydride to compound of general formula II is from about 1:1 to 3:1.
    • 一种制备通式I化合物的方法:其中:R 1是氢或C 1 -C 6烷基,C 2 -C 6烯基或C 2 -C 6炔基,其中任何一个可以被一个或多个选自卤素和 哦; 或COOR4,COR6,CONR4R5或CONHSO2R4; R 4和R 5各自独立地为氢或任选被一个或多个卤素原子取代的C 1 -C 4烷基; R6是卤素原子或基团R4; R2是氢或卤素; R 3是C 1 -C 4烷基,C 2 -C 4烯基或C 2 -C 4炔基,其中任何一个可以任选被一个或多个卤素原子取代; 或卤素; 所述方法包括使通式II的化合物:其中R 1,R 2和R 3如通式I所定义; 与硝酸和硝酸和硫酸的混合物在有机溶剂的存在下和在乙酸酐存在下的硝化剂,其特征在于乙酸酐与通式II的化合物的摩尔比为约1: 1到3:1。
    • 7. 发明授权
    • Nitrogen-containing compounds and use thereof
    • 含氮化合物及其用途
    • US4036868A
    • 1977-07-19
    • US542048
    • 1975-01-17
    • John Heathcote Atherton
    • John Heathcote Atherton
    • C08G77/388C07F7/10C07F7/18
    • C08G77/388
    • Nitrogen-containing organopolysiloxanes consisting of 0.18 to 14 mole percent of units of the formula (I): OSi(R).C.sub.d H.sub.2d CH.sub.2 N(R.sup.iv).Si(R)O, 0 to 0.1 mole percent of units of the formula (II): OSi(R)NHCH.sub.2 C(R'")=CH.sub.2 ; and 0 to 50 mole percent of units of the formula (III): OSi(R)C.sub.d H.sub.2d CH.sub.2 NH(R.sup.iv), the remaining units being R.sub.3 SiO.sub.1/2 or R.sub.e H.sub.f SiO.sub.4-e-f)/2, where R is a monovalent hydrocarbon group, R'" is hydrogen or methyl, R.sup.iv is hydrogen or alkyl having up to 6 carbon atoms, d is 2 or 3, e is 1 or 2, f is 0 or 1 and e + f is 2; and to organopolysiloxanes having the average general formula: ##STR1## WHERE R' is hydrogen, monovalent hydrocarbon or polyoxyalkylene of the formula (C.sub.n H.sub.2n O).sub.c R" wherein n is 2 or 3, R.sup.iv is hydrogen or alkyl having up to 6 carbon atoms, c is an integer of 1 to 30 and R" is hydrogen or monovalent hydrocarbon, r is a number from 0.1 to 5.0, s is a number from 1 to 4.99, t is a number from 0 to 500 and d is 2 or 3.
    • 由0.18至14摩尔%的式(I)单元组成的含氮有机聚硅氧烷:OSi(R).CdH2dCH2N(Riv).Si(O),0至0.1摩尔%的式(II)单元: OSi(NH)CH 2 C(R“')= CH 2; 和0至50摩尔%的式(III)的单元:OSi(R)CdH2dCH2NH(Riv),其余单元为R3SiO1 / 2或ReHfSiO4-ef)/ 2,其中R为单价烃基,R“ '是氢或甲基,Riv是氢或具有至多6个碳原子的烷基,d是2或3,e是1或2,f是0或1,e + f是2; 和具有以下平均通式的有机聚硅氧烷:其中R'为氢,式(CnH2nO)cR“的一价烃或聚氧化烯,其中n为2或3,Riv为氢或具有至多6个碳原子的烷基, c为1〜30的整数,R“为氢或一价烃,r为0.1〜5.0的数,s为1〜4.99的数,t为0〜500的数,d为2或3 。