Dispirotetradecanes
    1.
    发明授权

    公开(公告)号:US4853151A

    公开(公告)日:1989-08-01

    申请号:US112356

    申请日:1987-08-11

    摘要: Dispirotetradecanes of the formula I ##STR1## wherein R.sup.1 and R.sup.2 are each independently of each other alkyl containing 1 to 12 carbon atoms wherein one or more non-adjacent CH.sub.2 groups may also be replaced by --O--, --CO--, --CO--O--, --O--CO--, --O--COO-- and/or --CH.dbd.CH-- (trans), one of the radicals R.sup.1 and R.sup.2 also being H, F, Cl, Br, I, CN, NO.sub.2, NCS,A.sup.1 and A.sup.2 are each independently of each other trans-1,4-cyclohexylene wherein one or two non-adjacent CH.sub.2 groups may be replaced by --O-- and/or --S--, or 1,4-phenylene wherein one or more CH groups may also be replaced by N, with it also being possible optionally for A.sup.1 and A.sup.2 to be substituted laterally or axially by F, Cl, CN, CH.sub.3,Z.sup.1 and Z.sup.2 are each independently of each other --C--O--, --O--CO--, --CH.sub.2 CH.sub.2 --, --CH.sub.2 O--, --OCH.sub.2 -- or a single bond,m and n are each 0, 1 or 2,(m+n) 0, 1 or 2,X.sup.1, X.sup.2, X.sup.3 and X.sup.4 are each independently of each other H, F, Cl or CN, and one or both of the groups CX.sup.1 X.sup.2 and CX.sup.3 X.sup.4 may also be C.dbd.O, may be used as components of liquid-crystalline phases.

    摘要翻译: PCT No.PCT / EP86 / 00722 Sec。 371日期1987年8月11日 102(e)日期1987年8月11日PCT提交1986年12月8日PCT公布。 公开号WO87 / 03581 日期:1987年6月18日。式I的对映异十四烷酮其中R 1和R 2各自独立地为彼此具有1至12个碳原子的烷基,其中一个或多个不相邻的CH 2基团也可被-O- ,-CO-,-CO-O-,-O-CO-,-O-COO-和/或-CH = CH-(反式),基团R1和R2之一也是H,F,Cl,Br ,I,CN,NO 2,NCS,A 1和A 2各自独立地为彼此反式-1,4-亚环己基,其中一个或两个不相邻的CH 2基可以被-O-和/或-S-或1 其中一个或多个CH基团也可以被N代替的4-亚苯基,也可以任选地使A1和A2被F,B,CN,CH 3,Z 1和Z 2各自独立地取代为横向或轴向被F,Cl,CN, 其它-CO-,-O-CO-,-CH2CH2-,-CH2O-,-OCH2-或单键,m和n分别为0,1或2,(m + n)0,1或2,X1 ,X2,X3和X4各自独立地为H,F,Cl或CN,并且基团CX1X2和CX3X4中的一个或两个也可以是C = O,可以用作组分 的液晶相。

    Method and Device for Detecting Volatile Analytes in Air Samples
    2.
    发明申请
    Method and Device for Detecting Volatile Analytes in Air Samples 失效
    用于检测空气样品中挥发性分析物的方法和装置

    公开(公告)号:US20080105029A1

    公开(公告)日:2008-05-08

    申请号:US10554591

    申请日:2004-04-26

    IPC分类号: G01N29/04

    摘要: The invention relates to a method and a device (16) for detecting volatile analytes in air samples, where a mass sensitive sensor (20) with at least one sensor area (21) which is equipped with a surface layer with selective sensitivity for the analyte(s) to be detected is brought into contact with the air sample to be analyzed, the mass change of the surface layer is detected in the form of electrical signals and the electrical signals are evaluated. It is provided in accordance with the invention that the sensor signal is already evaluated at a point in time at which the maximum sensor signal for the analyte concentration in question is not yet obtained.

    摘要翻译: 本发明涉及一种用于检测空气样品中挥发性分析物的方法和装置(16),其中具有至少一个传感器区域(21)的质量敏感传感器(20)配备有对分析物具有选择性敏感性的表面层 要检测的气体与要分析的空气样品接触,以电信号的形式检测表面层的质量变化,并评估电信号。 根据本发明提供传感器信号已经在尚未获得所述分析物浓度的最大传感器信号的时间点上被评估。

    Dendritic nitrogen-containing organic compounds containing planar-chiral
or axial-chiral end groups and the preparation and use thereof
    4.
    发明授权
    Dendritic nitrogen-containing organic compounds containing planar-chiral or axial-chiral end groups and the preparation and use thereof 失效
    含有平面手性或轴向手性端基的树枝状含氮有机化合物及其制备和用途

    公开(公告)号:US5847190A

    公开(公告)日:1998-12-08

    申请号:US859182

    申请日:1997-05-20

    摘要: The present invention relates to dendritic, nitrogen-containing organic compounds containing at least 4 planar-chiral or axial-chiral groups, where these planar-chiral or axial-chiral groups are linked as Schiff's bases to the primary amino groups of compounds of the formula (I) (R.sup.1 R.sup.1)N--X--N(R.sup.1 R.sup.1) (I) where R.sup.1 is (R.sup.2 R.sup.2)N--(CH.sub.2).sub.2 -- or (R.sup.2 R.sup.2)N--(CH.sub.2).sub.3 --, R.sup.2 is hydrogen or (R.sup.3 R.sup.3)N--CH.sub.2).sub.2 -- or (R.sup.3 R.sup.3)N--(CH.sub.2).sub.3 --, R.sup.3 is hydrogen or (R.sup.4 R.sup.4)N--(CH.sub.2).sub.2 -- or (R.sup.4 R.sup.4)N--(CH.sub.2).sub.3 --, R.sup.4 is hydrogen or (R.sup.5 R.sup.5)--N--(CH.sub.2).sub.2 -- or (R.sup.5 R.sup.5)N--(CH.sub.2).sub.3 --, R.sup.5 is hydrogen or (R.sup.6 R.sup.6)N--(CH.sub.2).sub.2 -- or (R.sup.6 R.sup.6)N--(CH.sub.2).sub.3 -- and R.sup.6 is hydrogen, X is an aliphatic and/or aromatic group, which may contain heteroatoms, which are suitable as catalysts for asymmetrical homogeneous catalysis.

    摘要翻译: 本发明涉及含有至少4个平面手性或轴向手性基团的树枝状含氮有机化合物,其中这些平面手性或轴向手性基团作为席夫碱连接到式 (I)(R1R1)NXN(R1R1)(I)其中R1是(R2R2)N-(CH2)2-或(R2R2)N-(CH2)3-,R2是氢或(R3R3)N-CH2)2 - 或(R3R3)N-(CH2)3-,R3是氢或(R4R4)N-(CH2)2-或(R4R4)N-(CH2)3-,R4是氢或(R5R5) CH2)2-或(R5R5)N-(CH2)3-,R5是氢或(R6R6)N-(CH2)2-或(R6R6)N-(CH2)3-,R6是氢,X是脂肪族 和/或芳族基团,其可以含有杂原子,其适合作为不对称均相催化的催化剂。