Provided is a method for producing (alkyl)arene compounds represented by Formulae 3-1, 3-2, and 3-3 by the Friedel-Crafts alkylation reaction of alkyl halide compounds and arene compounds using organic phosphine compounds as a catalyst. ##STR00001##

Provided is a method for producing (alkyl)arene compounds represented by Formulae 3-1, 3-2, and 3-3 by the Friedel-Crafts alkylation reaction of alkyl halide compounds and arene compounds using organic phosphine compounds as a catalyst. ##STR00001##

The invention concerns a process and a facility for reducing the concentration of heavy polycyclic aromatic compounds (HPNA) in the recycle loop of hydrocracking units, which comprises a fractionation column.

In accordance with this process, a stream is withdrawn from the fractionation column at the level of at least one plate located between the supply plate and the plate for withdrawing the heaviest distillate fraction; the stream is stripped in an external stripping step by a stripping gas, in the presence of a portion of the residue. The separated gaseous effluent is recycled to the column, advantageously as a stripping gas, and the liquid fraction is recycled to the hydrocracking step; a residue is purged in the stripping step.

The invention concerns a process and a facility for reducing the concentration of heavy polycyclic aromatic compounds (HPNA) in the recycle loop of hydrocracking units, which comprises a fractionation column.

In accordance with this process, a stream is withdrawn from the fractionation column at the level of at least one plate located between the supply plate and the plate for withdrawing the heaviest distillate fraction; the stream is stripped in an external stripping step by a stripping gas, in the presence of a portion of the residue. The separated gaseous effluent is recycled to the column, advantageously as a stripping gas, and the liquid fraction is recycled to the hydrocracking step; a residue is purged in the stripping step.

A method is provided for using twisted acenes, and more particularly to configurationally stable twisted acenes that are imbedded into the structure of [7]helicene at the fulcrum ring to form useable material structures. The helicene propagates its chiral nature into the acene, while acting as a locking mechanism to thermal racemization. These doubly-helical compounds are part of a new homologous series of polycyclic aromatic hydrocarbons, namely the [7]helitwistacenes. Such [7]helitwistacenes have utility as materials suitable for forming a circularly polarized organic light emitting diode (CP-OLED) for direct emission of circularly polarized (CP) light for the fabrication of high efficiency electronic displays.

An organic functional compound, having a general formula of ASG).sub.p; wherein A is an organic group having an optoelectronic function; the structural formula of SG is selected from the group consisting of ##STR00001##
wherein ##STR00002##
is selected from the group consisting of an aryl containing 5-40 ring-forming atoms and a heteroaryl containing 5-40 ring-forming atoms; R1 and R2 are each independently selected from the group consisting of H, D, F, CN, an alkyl, an aromatic ring group, an aromatic heterocyclic group, an amino, a silyl, a germyl, an alkoxy, an aryloxy, and a siloxy group; and p is an integer greater than or equal to 1.

A compound including two or more partial structures shown by the following general formula (1-1) in the molecule, ##STR00001## wherein each Ar independently represents an aromatic ring optionally having a substituent or an aromatic ring that contains at least one nitrogen atom optionally having a substituent, and two Ars are optionally bonded with each other to form a ring structure; the broken line represents a bond with an organic group; B represents an anionic leaving group that is capable of forming a reactive cation due to effect of either or both of heat and acid. This provides a compound that is capable of curing under the film forming conditions in air or an inert gas without forming byproducts, and forming an organic under layer film that has good dry etching durability during substrate processing not only excellent characteristics of gap filling and planarizing a pattern formed on a substrate.

A compound including two or more partial structures shown by the following general formula (1-1) in the molecule, ##STR00001## wherein each Ar independently represents an aromatic ring optionally having a substituent or an aromatic ring that contains at least one nitrogen atom optionally having a substituent, and two Ars are optionally bonded with each other to form a ring structure; the broken line represents a bond with an organic group; B represents an anionic leaving group that is capable of forming a reactive cation due to effect of either or both of heat and acid. This provides a compound that is capable of curing under the film forming conditions in air or an inert gas without forming byproducts, and forming an organic under layer film that has good dry etching durability during substrate processing not only excellent characteristics of gap filling and planarizing a pattern formed on a substrate.

Provided are a functionalized polycyclic aromatic hydrocarbon compound and a light-emitting device including the same. The functionalized polycyclic aromatic hydrocarbon compound is structurally stable, and exhibits high light-emission characteristics since aggregation caused by π-π stacking is inhibited, and thus may have high efficiency and long lifespan characteristics.

Provided is a method for producing (alkyl)arene compounds represented by Formulae 3-1, 3-2, and 3-3 by the Friedel-Crafts alkylation reaction of alkyl halide compounds and arene compounds using organic phosphine compounds as a catalyst.

##STR00001##