Abstract: Provided are an organometallic iridium complex, a synthetic method thereof, and an organic light emitting device using the same. The synthetic method includes steps of: (a) reacting a t-Bu—Ar1—MgX with a nitrogen-containing heteroaryl salt in a nucleophilic reaction, so as to obtain an intermediate; wherein t-Bu represents a tert-butyl group; Ar1 is an arylene group having 5 to 16 carbon atoms or a sulfur-containing heteroarylene group having 4 to 14 carbon atoms; X is a halogen atom; the nitrogen-containing heteroaryl salt is a salt which includes the t-Bu—Ar2 group, and Ar2 is a nitrogen-containing heteroaryl group having 5 to 14 carbon atoms; (b) oxidizing the intermediate with an oxidant for aromatization to obtain a ligand; and (c) reacting the ligand with an iridium(III) acetylacetonate to obtain the organometallic iridium complex.

Abstract: The invention relates to a facile synthesis of a series of 2-(4?-alkoxyphenyl)-5-cyanopyridine liquid crystal compounds which are represented by the following formula (I): wherein CnH2n+1 is a linear alkyl group having 2-12 carbon atoms. The synthesis of the liquid crystalline 2-(4?-alkoxyphenyl)-5-cyanopyridine is completed in a two-step reaction. First, a Grignard reagent (such as 4-alkoxyphenylmagnesium bromide) is added to a 3-cyanopyridinium salt (such as N-phenyloxycarbonyl-3-cyanopyridinium chloride) to get a 1,2-dihydropyridine. Then, the 1,2-dihydropyridine is oxidized with o-chloronil to obtain the 2-(4?-alkoxyphenyl)-5-cyanopyridine.

Abstract: The invention relates to a facile synthesis of a series of 2-(4?-alkylphenyl)-5-cyanopyridine liquid crystal compounds which are represented by the following formula (I): wherein Cn is a linear alkyl having 1-12 carbon atoms. The synthesis of the liquid crystalline 2-(4?-alkylphenyl)-5-cyanopyridine is completed in a two-step reaction. First, a Grignard reagent (such as 4-alkylphenylmagnesium bromide) is added to a 3-cyanopyridinium salt (such as N-phenyloxycarbonyl-3-cyanopyridinium chloride) to get a 1,2-dihydropyridine. Then the 1,2-dihydropyridine is oxidized with o-chloronil to obtain the 2-(4?-alkylphenyl)-5-cyanopyridine.

Abstract: The invention relates to a facile synthesis of a series of 2-(4?-alkoxyphenyl)-5-cyanopyridine liquid crystal compounds which are represented by the following formula (I): wherein CnH2n+1 is a linear alkyl group having 2-12 carbon atoms. The synthesis of the liquid crystalline 2-(4?-alkoxyphenyl)-5-cyanopyridine is completed in a two-step reaction. First, a Grignard reagent (such as 4-alkoxyphenylmagnesium bromide) is added to a 3-cyanopyridinium salt (such as N-phenyloxycarbonyl-3-cyanopyridinium chloride) to get a 1,2-dihydropyridine. Then, the 1,2-dihydropyridine is oxidized with o-chloronil to obtain the 2-(4?-alkoxyphenyl)-5-cyanopyridine.

Abstract: The invention relates to a facile synthesis of a series of 2-(4?-alkylphenyl)-5-cyanopyridine liquid crystal compounds which are represented by the following formula (I): wherein Cn is a linear alkyl having 1-12 carbon atoms. The synthesis of the liquid crystalline 2-(4?-alkylphenyl)-5-cyanopyridine is completed in a two-step reaction. First, a Grignard reagent (such as 4-alkylphenylmagnesium bromide) is added to a 3-cyanopyridinium salt (such as N-phenyloxycarbonyl-3-cyanopyridinium chloride) to get a 1,2-dihydropyridine. Then the 1,2-dihydropyridine is oxidized with o-chloronil to obtain the 2-(4?-alkylphenyl)-5-cyanopyridine.