Abstract: A novel semiconductor device comprises an azaperylene organic semiconductor of the formula I wherein the substitutents are defined herein.

Abstract: The invention relates to novel synthesis methods for the preparation of the intermediates, which are suitable for the preparation of statin derivatives, especially to novel synthesis methods of the intermediate of formula VI wherein Ra and Rc are each independently of the other hydrogen or a hydroxy-protecting group or together are a bridging hydroxy-protecting group, and Rb is a carboxy-protecting group, which methods are carried out by conversion of the intermediate of formula XIX wherein Ra and Rc are each independently of the other hydrogen or a hydroxy-protecting group, and Rb is a carboxy-protective group.

Abstract: The invention relates to a semiconductor device comprising a compound of the formula I and of the formula XXI, wherein the symbols have the meanings defined in the specification, to the novel compounds of the formula I and XXI and to the use of such a compound as an organic semiconductor for the preparation of an electronic device, and further compounds and devices, as well as other embodiments given in the specification.

Abstract: A semiconducting layer comprising a non-polymeric quinoid heteroacene compound of the formula (I) wherein X stands for O, S or NR, each of R, R1, R2, R3, R4, R5, R6, R7, R8 being independently selected from hydrogen and an organic residue, or 2 or more thereof together forming one or more annealed rings, which may be substituted or unsubstituted, carbocyclic or helerocyclic, aromatic, quinoid or aliphatic, may be used e.g. for the manufacture of a diode, an organic field effect transistor, an organic thin film transistor, or a device containing a diode and/or an organic field effect transistor and/or organic thin film transistor.

Abstract: A novel semiconductor device comprises an azaperylene organic semiconductor of the formula I (I) wherein each of R1, R2, R3 and R4 independently is selected from H, unsubstituted or substituted alkyl, unsubstituted or substituted alkenyl, unsubstituted or substituted alkynyl, unsubstituted or substituted aryl, halogen, Si(RH)3, XR6; or one or more of R1 and R2, R2 and R3, R3 and R4, together with the carbon atoms they are bonding to, form a saturated or unsaturated, unsubstituted or substituted carbocyclic or heterocyclic ring; R5 is OR7, SR7, NR7R8, unsubstituted or substituted alkyl, unsubstituted or substituted alkenyl, unsubstituted or substituted alkynyl, or unsubstituted or substituted aryl; R6 is Si(R11)3, unsubstituted or substituted alkyl, unsubstituted or substituted alkenyl, unsubstituted or substituted alkynyl, unsubstituted or substituted aryl; R7 is H, unsubstituted or substituted alkyl, unsubstituted or substituted alkenyl, unsubstituted or substituted alkynyl, unsubstituted or substituted aryl

Abstract: Synthesis methods for the preparation of intermediates which are suitable for the preparation of statin derivatives, and especially to synthesis methods for the intermediate of formula (VI) wherein Ra? and Rc? are each independently of the other hydrogen or hydroxy-protecting group, or together are a bridging hydroxy-protecting group; and Rb is a carboxy-protecting group.

Abstract: Disclosed is the use of the compounds of formula wherein Q is —OH; —OR7; —NH2; —NHR7; —NR7R8; or —N?R9; T is —COR5; —CN; or —SO2—(C6-C12)aryl; R1 is hydrogen; —OR7, —SR7; —NHR7; —NR7R8; C1-C22alkyl; C2-C12Alkenyl; C2-C12alkinyl; C3-C12cycloalkyl; C3-C12cycloalkenyl; C7-C12aralkyl; C1-C12heteroalkyl, C2-C11heteroaralkyl; C6-C10aryl; or C1-C9heteroaryl; R2 and R3 independently from each other are C1-C22alkyl; C2-C12alkenyl; C2-C12alkinyl; C3-C12cycloalkyl, C3-C12cycloalkenyl; C7-C12aralkyl; C1-C12heteroalkyl; C3-C12cycloheteroalkyl; C2-C11heteroaralkyl, C6-C10aryl; or C1-C9heteroaryl; R4 is cyano; COR7, COOR7; CONH2; CONHR7; CONR7R8; SO2(C6-C12)aryl, C2-C12alk-1-enyl; C3-C12cycloalk-1-enyl; C2-C12alk-1-inyl; C2-C12heteroalkyl, C3-C5heterocycloalkyl, C6-C10aryl; or C1-C9heteroaryl; R5 is —COR7; —COOR7; —OR7; —SR7, —NHR7, —NR7R8; C2-C12alkyl; C2-C12alkenyl; C2-C12alkinyl; C3-C12cycloalkyl; C3-C12cycloalkenyl; C7-C12aralkyl; C1-C12alkylphenyl; C1-C12alkoxy-C8-C10aryl; C1-C12heteroalkyl; C2-C11heteroaralkyl; C

Abstract: The invention relates to novel optical recording media, which comprise particular novel metal chelates and have an excellent recording and playback quality, especially at a wavelength of from 300 to 500 nm.

Abstract: The invention relates to an optical recording medium comprising a substrate, a recording layer and optionally one or more reflecting layers, wherein the recording layer comprises a compound of formula (I). For the detailed definitions of the further substituents, see the description. Recording and playback are effected especially at a wavelength of from 300 to 500 nm, for example using a blue laser. The recording and playback quality is excellent and allows a high storage density even at high speeds.

Abstract: Synthesis methods for the preparation of intermediates which are suitable for the preparation of statin derivatives, and especially to synthesis methods for the intermediate of formula (VI) wherein Ra? and Rc? are each independently of the other hydrogen or hydroxy-protecting group, or together are a bridging hydroxy-protecting group; and Rb is a carboxy-protecting group.

Abstract: The invention relates to novel synthesis methods for the preparation of the intermediates, which are suitable for the preparation of statin derivatives, especially to novel synthesis methods of the intermediate of formula VI wherein Ra? and Rc? are each independently of the other hydrogen or a hydroxy-protecting group or together are a bridging hydroxy-protecting group, and Rb is a carboxy-protecting group, which methods are carried out by conversion of the intermediate of formula XVI wherein Ra? and Rc? are each independently of the other hydrogen or a hydroxy-protecting group, R* and R** are each independently of the other hydrogen or an amide-protecting group, and Rb is a carboxy-protecting group; which methods proceed to further new intermediates and methods for their preparation

Abstract: The invention relates to an optical recording medium comprising a substrate, a recording layer and optionally one or more reflecting layers, wherein the recording layer comprises a compound of formula (I) or a tautomeric or mesomeric form thereof, wherein G1 and G2 are each independently of the other C(R5) or N; M1 is a lanthanide or transition metal of groups 4 to 10; P is a phthalocyanino diradical; and R1 to R5 are substituents as defined in the description and the claims. Recording and playback are effected especially at a wavelength of from 350 to 500 nm, for example using a blue laser. The recording and playback quality is excellent and allows a high storage density.

Abstract: The invention relates to novel synthesis methods for the preparation of the intermediates, which are suitable for the preparation of statin derivatives, especially to novel synthesis methods of the intermediate of formula VI wherein Ra and Rc are each independently of the other hydrogen or a hydroxy-protecting group or together are a bridging hydroxy-protecting group, and Rb is a carboxy-protecting group, which methods are carried out by conversion of the intermediate of formula XIX wherein Ra and Rc are each independently of the other hydrogen or a hydroxy-protecting group, and Rb is a carboxy-protective group.

Abstract: The invention relates to novel synthesis methods for the preparation of the intermediates, which are suitable for the preparation of statin derivatives, especially to novel synthesis methods of the intermediate of formula VI wherein Ra and Rc are each independently of the other hydrogen or a hydroxy-protecting group or together are a bridging hydroxy-protecting group, and Rb is a carboxy-protecting group, which methods are carried out by conversion of the intermediate of formula XIX wherein Ra and Rc are each independently of the other hydrogen or a hydroxy-protecting group, and Rb is a carboxy-protective group

Abstract: Disclosed is a process for the preparation of a compound of formula wherein R1 is hydrogen, hydroxyl, or unsubstituted or substituted alkyl or alkoxy, R2 is hydrogen or a substituent which can be converted to hydrogen, and n is 0, 1 or 2, comprising hydrogenating a compound of formula wherein R1, R2 and n are as defined above, in the presence of a nickel or cobalt catalyst.

Abstract: The invention relates to novel optical recording materials that comprise specific and in some cases novel diketone enamines or metal chelates thereof and that have excellent recording and playback quality especially at a wavelength of 350-500 nm. The invention accordingly relates to an optical recording medium comprising a substrate, a recording layer and optionally a reflecting layer, wherein the recording layer comprises a compound of formula (I), wherein M is hydrogen, aluminium or, preferably, a transition metal, which may in addition be coordinated with one or more further ligands and/or, for balancing out an excess charge, where applicable, may have an electrostatic interaction with one or more further ions inside or outside the coordination sphere, but M in formulae (Ib) and (Ic) is not hydrogen, Q is C—H, N or C—R6, it being possible for the stereochemistry of the C=Q double bond to be either E or Z. For the exact definitions of R1 to R6 reference should be made to the description.

Abstract: The invention relates to novel synthesis methods for the preparation of the intermediates, which are suitable for the preparation of statin derivatives, especially to novel synthesis methods of the intermediate of formula VI wherein Ra and Rc are each independently of the other hydrogen or a hydroxy-protecting group or together are a bridging hydroxy-protecting group, and Rb is a carboxy-protecting group, which methods are carried out by conversion of the intermediate of formula XIX wherein Ra and Rc are each independently of the other hydrogen or a hydroxy-protecting group, and Rb is a carboxy-protective group.

Abstract: The invention relates to novel synthesis methods for the preparation of the intermediates, which are suitable for the preparation of statin derivatives, especially to novel synthesis methods of the intermediate of formula VI wherein Ra′ and Rc′ are each independently of the other hydrogen or a hydroxy-protecting group or together are a bridging hydroxy-protecting group, and Rb is a carboxy-protecting group, which methods are carried out by conversion of the intermediate of formula XVI wherein Ra′ and Rc′ are each independently of the other hydrogen or a hydroxy-protecting group, R* and R** are each independently of the other hydrogen or an amide-protecting group, and Rb is a carboxy-protecting group; which methods proceed to further new intermediates and methods for their preparation.

Abstract: Disclosed is a process for the preparation of a compound of formula 1

Abstract: The present invention pertains to a process for the preparation of an enantiomerically enriched chiral carboxylic acid derivative having the partial formula: C—C—C—COOX wherein X is a cation, comprising formation of a dehydro precursor salt having the partial formula: C═C—C—COOX by reaction of the corresponding precursor acid with an at least substantially stoichiometric amount of base, and asymmetric hydrogenation of the salt in the presence of a transition metal complex of a chiral phosphine ligand.