Abstract: Electroluminescent device comprising in this order (a) an anode (b) a hole transporting layer (c) a light-emitting layer (d) optionally an electron transporting layer and (e) a cathode and a light-emitting substance, wherein the light-emitting substance is a diketopyrrolopyrrole represented by formula I or formula III processes for the preparation of compounds I, its uses and compositions comprising the compounds I and/or III.

Abstract: The present invention relates to the use as perfuming ingredient of a decaline derivative of formula wherein R1 is a lower alkyl, the R2 to R5 are hydrogen atoms or lower alkyls and at least one dotted line is a double bond, which is a useful perfuming ingredient of the woody or woody-citrus type.

Abstract: The present invention relates to the perfumery industry. It concerns more particularly an alcohol, ester, ether or ketone derivative having a spiro-type skeleton, the latter being substituted by short alkyl groups. The invention also relates to the use of the invention compounds as perfuming ingredients, able to impart a woody and/or aromatic, as well as to the perfumed articles or perfuming compositions comprising as active ingredient a compound of formula (I).

Abstract: Electroluminescent device comprising in this order

Abstract: Fluorescent diketopyrrolopyrroles (“DPPs”) of the formula I 1

Abstract: The present invention relates to fluorescent diketopyrrolopyrroles of formula I and processes for its preparation, its uses and compositions comprising the compounds of formula I.

Abstract: 2,3-Dioxo-1,2,3,4-tetrahydro-quinoxalinyl derivatives of formula (I), ##STR1## wherein one of the radicals R.sub.1, and R.sub.2 is a group R.sub.5 and the other is a group of formula --CH(R.sub.6)--alk--R.sub.7 (Ia), --alk--CH(R.sub.6 -R.sub.7 (Ib), --alk--N(R.sub.8)--X--R.sub.7 (Ic), --alk--N.sup.+ (R.sub.8)(R.sup.9)--X--R.sub.7 A.sup.- (Id), --alk--O--X--R.sub.7 (Ie) or --alk--S--X--R.sub.7 (If), R.sub.3, R.sub.4 and R.sub.5 are each independently of the others hydrogen, lower alkyl, halogen, trifluoromethyl, cyano or nitro, R.sub.6 is unsubstituted or lower alkylated and/or lower alkanoylated amino, R.sub.

Abstract: Compounds of formula ##STR1## wherein R and R' are each independently of the other hydrogen, C.sub.1 -C.sub.18 alkyl, COR.sub.1, COR.sub.2 or COOR.sub.1,X and X' are each independently of the other hydrogen, halogen, OH, NH.sub.2, COOH, C.sub.1 -C.sub.18 -alkyl, isocyclic or heterocyclic aromatic radicals, OR.sub.3, OCOR.sub.3, OCOR.sub.4, OCOR.sub.3, NHR.sub.3, N(R.sub.3).sub.2, NHCOR.sub.3, NHCOR.sub.4 or NHCOOR.sub.3,Y and Y' are each independently of the other hydrogen, halogen, OH, NH.sub.2, nitro, cyano, C.sub.1 -C.sub.18 alkyl, isocyclic or heterocyclic aromatic radicals, COR.sub.5, COR.sub.6, COOR.sub.5, COOR.sub.6, CONH.sub.2, SO.sub.2 R.sub.5, SO.sub.2 R.sub.6, SO.sub.2 NH.sub.2, SO.sub.3 H, PO(OR.sub.5).sub.2 or PO(OH).sub.2, andZ and Z' are each independently of the other hydrogen, halogen, OH, NH.sub.2, COOH, cyano, C.sub.1 -C.sub.18 alkyl, isocyclic or heterocyclic aromatic radicals, OR.sub.7, OR.sub.8, OCOR.sub.7, OCOR.sub.8, OCOOR.sub.7, NHR.sub.7, N(R.sub.7).sub.2, NHR.sub.8, CONH.sub.