NOVELTY - Substituted arylamine compounds (I) are new.    USE - (I), the compound containing crosslinked groups Q, and the layer are useful in electronic devices, preferably organic electroluminescent devices (preferred), organic integrated circuits, organic field-effect transistors, organic thin film transistors, organic light-emitting transistors, organic solar cells, organic optical detectors, organic photoreceptors, organic field-quench devices, light-emitting electrochemical cells or organic laser diodes. (I) and the compound containing crosslinked groups Q are useful in a hole transport layer or a hole-injection layer of the electronic devices (all claimed).    ADVANTAGE - (I) can be crosslinked with low energy consumption. The electronic device comprising (I), exhibits high efficiency and long service life.    DETAILED DESCRIPTION - Substituted arylamine compounds of formula (Ar4-N(Ar5)-(Ar2)q-(Ar1)n-((Ar3)r-N(Ar6)-Ar7)m) (I) are new.    Ar1 = heterocyclyl moieties of formula (II) (where (II) is optionally bonded at any position with Ar2 and Ar3 or with N or with a further group AR1 (when n = greater than 1));    Y1 = N (when (II) is bonded with Ar2 through N and with Ar3 or N or with Ar1 (when n = greater than 1)), or NR, O, S, CR=CR, CR2-CR2 or heterocyclyl moieties of formula (III), or CR2 (when 2 adjacent X = heteroaryl moieties of formula (IV), (V) or (VI)); either    X = C (when (II) is bonded with Ar2 or Ar3 or with N or Ar1 (when n = greater than 1) through X), CR or N; or    2 adjacent X = (IV), (V) or (VI);    Z = C (when (IV), (V) or (VI) is bonded with Ar2 and Ar3 or with N or Ar1 through X (when n is greater than 1), or CR or N;    Y1 = C(R)2, NR, O or S;    Ar2, Ar3 = (hetero)aryl with 5-18 aromatic ring atoms (optionally substituted by at least one group R);    Ar4-Ar7 = (hetero)aromatic ring with 5-24 aromatic ring atoms (optionally substituted by at least one group R), where Ar4 and Ar5, Ar4 and Ar2, Ar5 and Ar2, Ar6 and Ar7, Ar6 and Ar3 and/or Ar3 and Ar7 are optionally bonded with each other by a group E, and at least two of Ar4-Ar7 are substituted by -L-(Ar8)p-Q;    E = single bond, CR2, O, S or NR; either    R = 1-40C alkyl or 1-40C (thio)alkoxy (all linear), or 3-40C alkyl or 3-40C (thio)alkoxy (all branched or cyclic), or 2-40C alkenyl or 2-40C alkynyl (in all groups at least one non-adjacent CH2 group may be replaced by R1C=CR1, CC, Si(R1)2, C=O, C=S, C=NR1, P(=O)(R1), SO, SO2, NR1, O, S or CONR1, and at least one H may be replaced by D, F, C l, Br, I or CN), (hetero)aromatic ring with 5-60 aromatic ring atoms, (hetero)aryloxy with 5-60 aromatic ring atoms, (hetero)aralkyl with 5-60 aromatic ring atoms, diarylamino with 10-40 aromatic ring atoms, diheteroarylamino with 10-40 aromatic ring atoms or arylheteroarylamino with 10-40 aromatic ring atoms (all optionally substituted by at least one group R1), H, D, F, Cl, Br, I, N(R1)2, CN, NO2, Si(R1)3, B(OR1)2, C(=O)R1, P(=O)(R1)2, S(=O)R1, S(=O)2R1 or OSO2R1; or    at least 2R = mono- or polycyclic and aliphatic, aromatic and/or benzo-fused ring; either    R1 = 1-20C aliphatic hydrocarbyl and/or 1-20C (hetero)aromatic hydrocarbyl (in all groups at least one H may be replaced by F), H, D or F; or    at least 2R1 = mono- or polycyclic and aliphatic or aromatic ring;    n = 1-4;    m = 1-3;    q, r = 0-3;    L = spacer group or direct bond;    Ar8 = (hetero)aromatic ring with 5-24 aromatic ring atoms (optionally substituted by at least one group R);    Q = crosslinkable group; and    p = 0 or 1.    INDEPENDENT CLAIMS are also included for:    (1) a compound or a layer, which is obtainable by crosslinking the groups Q of (I), where the crosslinking is optionally carried out in a layer;    (2) preparing the crosslinked layer, comprising applying (I) from a solution to form a layer, and crosslinking this layer;    (3) an electronic device, preferably organic electroluminescent devices, organic integrated circuits, organic field-effect transistors, organic thin film transistors, organic light-emitting transistors, organic solar cells, organic optical detectors, organic photoreceptors, organic field-quench devices, light-emitting electrochemical cells or organic laser diodes, comprising (I), the compound containing crosslinked groups Q, and the above layer; and    (4) a formulation comprising (I) and at least one solvent.