会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Process for the preparation of ether-sulphonates
    • 醚磺酸盐的制备方法
    • US5523471A
    • 1996-06-04
    • US520712
    • 1995-08-29
    • Klaus DelpyFritz EngelhardtRalf ZerrerDirk Buhring
    • Klaus DelpyFritz EngelhardtRalf ZerrerDirk Buhring
    • B01J23/04C07B61/00C07C303/32C07C309/10C07C381/00
    • C07C303/32
    • The present invention relates to a process for the preparation of ether-sulphonates of high purity, substantially free from extraneous salts, of the general formula IR.sup.1 --[O--(CR.sup.2 R.sup.2 R.sup.2' --CR.sup.5 R.sup.5' SO.sub.3 MIin whichR.sup.2 to R.sup.5, R.sup.2+ to R.sup.5', M, x and y are defined as given in claim 1 by reacting a compound of the general formula IIR.sup.1 --[O--(CR.sup.2 R.sup.2+ --CR.sup.3 R.sup.3').sub.x ].sub.y --OHIIwith a compound of the general formula IIIHO--CR.sup.4 R.sup.4' CR.sup.5 R.sup.5' --SO.sub.3 M IIIin the presence of a compound of the general formula IVMOH IVfollowed by neutralization of the compound of the general formula IV with an acid, characterized in that the acid employed is a compound of the general formula VR.sup.1 --[O--(CR.sup.2 R.sup.2' --CR.sup.3 R.sup.3').sub.x ].sub.y --OCR.sup.4 R.sup.4' CR.sup.5 R.sup.5' SO.sub.3 H V
    • 本发明涉及一种制备基本上不含外来盐的通式ⅠR1- [O-(CR2R2R2'-CR5R5'SO3MI)的高纯度醚 - 磺酸盐的方法,其中R2至R5,R2 +至R5 ',M,x和y定义如权利要求1中所述,通式II的化合物R1- [O-(CR2R2 + -CR3R3')x] y-OHII与通式III的化合物HO-CR4R4 在通式IV MOHIV的化合物的存在下,用酸中和所述通式IV的化合物,其特征在于所用的酸是通式为R 1 - [O - (CR2R2'-CR3R3')x] y-OCR4R4'CR5R5'SO3HV
    • 3. 发明授权
    • Process for preparing N-alkylcarbazoles
    • 制备N-烷基咔唑的方法
    • US5902884A
    • 1999-05-11
    • US21981
    • 1998-02-11
    • Wolfgang BauerKlaus DelpyGert NaglLeonhard Unverdorben
    • Wolfgang BauerKlaus DelpyGert NaglLeonhard Unverdorben
    • B01J31/02C07B61/00C07D209/86C07D209/88C07D209/82
    • C07D209/88C07D209/86
    • Process for preparing N-alkylcarbazolesThe present invention relates to a process for preparing N-alkylcarbazoles of the formula I ##STR1## where R.sup.1 is (C.sub.1 -C.sub.6)-alkyl andY is hydrogen, (C.sub.1 -C.sub.6)-alkyl, (C.sub.1 -C.sub.6)-alkoxy, nitro or halogen, by reacting a carbazole of the formula II ##STR2## with an alkyl halide of the formula IIIR.sup.1 -X IIIwhere X is a halogen atom,in an inert solvent in the presence of an inorganic base and a catalyst of the formula IVR.sup.2 R.sup.3 N-(CH.sub.2).sub.n -NR.sup.4 R.sup.5 IVwheren is an integer from 2 to 8,R.sup.2, R.sup.3 and R.sup.4 are, independently of one another, hydrogen or (C.sub.1 -C.sub.4)-alkyl andR.sup.5 is hydrogen, (C.sub.1 -C.sub.4)-alkyl, amino-(C.sub.1 -C.sub.4)-alkyl or N,N-di(C.sub.1 -C.sub.4)-alkylamino-(C.sub.1 -C.sub.4)-alkyl.
    • 制备N-烷基咔唑的方法本发明涉及制备式I的N-烷基咔唑的方法,其中R 1为(C 1 -C 6) - 烷基且Y为氢,(C 1 -C 6) - 烷基,(C 1 -C 6) - 烷氧基,硝基或卤素,在惰性溶剂中,在惰性溶剂中,在无机碱和式IVR2R3N-的催化剂的存在下,使式II的咔唑与式IIIR1-XIII的烷基卤反应,其中X是卤素原子, (CH2)n-NR4R5IV其中n为2至8的整数,R2,R3和R4彼此独立地为氢或(C1-C4) - 烷基,R5为氢,(C1-C4) - 烷基, 氨基 - (C 1 -C 4) - 烷基或N,N-二(C 1 -C 4) - 烷基氨基 - (C 1 -C 4) - 烷基。