aromatic amines with a reusable polymeric diazotization agent in the presence of p-toluenesulfonic acid at room temperature in water was developed. The method is general and is the greenest alternative of the known diazotization-iodination methods. The method is also effective for the preparation of 1H-benzo[d][1,2,3]triazole and benzo[d][1,2,3]thiadiazole. diazotization- halogenation - iodination - heterocycles
开发了一种方便,温和的一锅法,该方法通过在室温下于水中在对甲苯磺酸存在下用可重用的聚合重氮化剂对芳族胺进行顺序重氮化-碘化来高产率地合成碘代芳烃。该方法是通用的,并且是已知的重氮化-碘化方法的最绿色的替代方法。该方法对于制备1 H-苯并[ d ] [1,2,3]三唑和苯并[ d ] [1,2,3]噻二唑也是有效的。 重氮化-卤化-碘化-杂环-胺
Bianthracene compounds substituted by aromatic ring and their uses for luminescence materials
申请人:Cai Lifei
公开号:US20120309974A1
公开(公告)日:2012-12-06
The present invention relates to Aromatic ring substituted dianthracene compounds and pertains to the field of synthesis of organic light-emitting materials. Aromatic ring substituted dianthracene compounds in the formula (I) present high glass transition temperature and solution efficiency, which can be used as effective blue-light emitting host materials.
Outlined is a simple, convenient, scalable procedure for the synthesis of a variety of 5′-substituted m-terphenyl compounds from commercially available materials. A series of novel compounds were generated based on the m-terphenyl scaffold. In addition we present a full and complete characterization, including the crystal structure, of 3,5-diphenylbenzaldehyde (1,1′:3′,1′′-terphenyl-5′-carbaldehyde).
Linear Hydroaminoalkylation Products from Alkyl‐Substituted Alkenes
作者:Michael Warsitz、Sven Doye
DOI:10.1002/chem.202003223
日期:2020.11.26
alkyl‐substituted alkenes into linear hydroaminoalkylation products represents a strongly desirable synthetic transformation. In particular, such conversions of N‐methylamine derivatives are of great scientific interest, because they would give direct access to important amines with unbranched alkyl chains. Herein, we present a new one‐pot procedure that includes an initial alkenehydroaminoalkylation with an
The present invention relates to a novel triscarbazole compound having substituent on N-phenyl, which can be represented by Formula (I). wherein R1 is selected from the group consisting of hydrogen, halogen or alkyl or alkoxy group having 1 to 20 carbon atoms wherein at least one hydrogen atom is optionally replaced by halogen; RA, RB, RC, RD and RE are any of substituents other than hydrogen wherein at least two of R1 and RA may further form a fused ring; and i, j, k, l and m are same or different at each occurrence and represent an integer from 0 to 4, with the proviso that when R1 is hydrogen, i is not 0. By introduction of the substituent on N-phenyl, the device efficiency, stability and lifetime can be increased while maintaining the solubility. These compounds can be used in various organic devices such as organic light emitting diodes, photovoltaic cells or organic semiconductor devices.