A method for continuous synthesis of acylnaphthalene includes: mixing a raw solution containing 2-methylnaphthalene with an acylation liquid to obtain an acylation reaction liquid with a molar ratio of the 2-methylnaphthalene:the acylation agent:the Lewis catalyst of 1:1.3:1.5; adding the acylation reaction liquid into a microchannel reactor and a plurality of kettle reactors connected in series to perform acylation reaction, performing hydrolysis reaction on the acylation reaction liquid immediately after the acylation reaction liquid flows out of the plurality of kettle reactors to obtain a mixed solution, and subjecting the mixed solution to separation, rectification and crystallization, to obtain 2-methyl-6-propionylnaphthalene.

A method for continuous synthesis of acylnaphthalene includes: mixing a raw solution containing 2-methylnaphthalene with an acylation liquid to obtain an acylation reaction liquid with a molar ratio of the 2-methylnaphthalene:the acylation agent:the Lewis catalyst of 1:1.3:1.5; adding the acylation reaction liquid into a microchannel reactor and a plurality of kettle reactors connected in series to perform acylation reaction, performing hydrolysis reaction on the acylation reaction liquid immediately after the acylation reaction liquid flows out of the plurality of kettle reactors to obtain a mixed solution, and subjecting the mixed solution to separation, rectification and crystallization, to obtain 2-methyl-6-propionylnaphthalene.

A compound represented by (Tr).sub.n-Z is useful as a host material for delayed fluorescent materials. Tr represents a substituted or unsubstituted triphenylenyl group, and plural Tr's existing in the general formula (1) may be the same as or different from each other. Z represents a carbonyl group or a substituted or unsubstituted, n-valent aromatic hydrocarbon group. n represents an integer of 2 to 6, but when Z is a carbonyl group, n is 2.

A compound represented by (Tr).sub.n-Z is useful as a host material for delayed fluorescent materials. Tr represents a substituted or unsubstituted triphenylenyl group, and plural Tr's existing in the general formula (1) may be the same as or different from each other. Z represents a carbonyl group or a substituted or unsubstituted, n-valent aromatic hydrocarbon group. n represents an integer of 2 to 6, but when Z is a carbonyl group, n is 2.

Provided is an organic electroluminescence device provided with a light absorber represented by Formula 1 below, and a light absorbing layer including the same. In Formula 1, Ar is pyrene, chrysene, or anthracene, and Y is a hydrogen atom or a substituent, and X is represented by any one of Formula 2-1 to 2-3 below.

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Disclosed are new polycyclic carbogenic molecules and their methods of synthesis. The new polycyclic carbogenic molecules may be utilized in anti-cancer therapies. In particular, the polycyclic carbogenic molecules may be formulated as pharmaceutical compositions that comprise the small molecules, which compositions may be administered in methods of treating and/or preventing cell proliferative diseases and disorders such as cancer. The new polycyclic carbogenic molecules may be prepared from vinyl- or allyl-substituted cyclohexenone precursors via preparation of a silyl bis-enol ether intermediate.

Disclosed are new polycyclic carbogenic molecules and their methods of synthesis. The new polycyclic carbogenic molecules may be utilized in anti-cancer therapies. In particular, the polycyclic carbogenic molecules may be formulated as pharmaceutical compositions that comprise the small molecules, which compositions may be administered in methods of treating and/or preventing cell proliferative diseases and disorders such as cancer. The new polycyclic carbogenic molecules may be prepared from vinyl- or allyl-substituted cyclohexenone precursors via preparation of a silyl bis-enol ether intermediate.

A method for producing an organometallic nucleophile includes reacting an organohalide and a metal or metal compound with each other by a mechanochemical process in the presence of an ether compound in an amount of 0.5 to 10.0 equivalents relative to 1 equivalent of the organohalide. By utilizing the method, a method for producing an organometallic nucleophile can be performed without using a large-scale apparatus, a reaction method for reactions between an organometallic nucleophile and various organic electrophiles can be performed by an efficient and simplified means, and a simplified method for producing an organometallic nucleophile can be performed with high reactivity.

A method for producing an organometallic nucleophile includes reacting an organohalide and a metal or metal compound with each other by a mechanochemical process in the presence of an ether compound in an amount of 0.5 to 10.0 equivalents relative to 1 equivalent of the organohalide. By utilizing the method, a method for producing an organometallic nucleophile can be performed without using a large-scale apparatus, a reaction method for reactions between an organometallic nucleophile and various organic electrophiles can be performed by an efficient and simplified means, and a simplified method for producing an organometallic nucleophile can be performed with high reactivity.

Provided is an organic electroluminescence device provided with a light absorber represented by Formula 1 below, and a light absorbing layer including the same. In Formula 1, Ar is pyrene, chrysene, or anthracene, and Y is a hydrogen atom or a substituent, and X is represented by any one of Formula 2-1 to 2-3 below. ##STR00001##