نتایج جستجو برای: imides

تعداد نتایج: 720  

Journal: :Chemical communications 2013
Xiaoyu Yan Kun Fang Hailan Liu Chanjuan Xi

A novel copper-catalyzed oxidation of arene-fused cyclic amines to the corresponding cyclic imides has been developed. The reaction can be used to synthesize 1,3-disubstituted TPD in high yields.

Journal: :Chemical communications 2012
Barbara Ventura Heinz Langhals Bernd Böck Lucia Flamigni

Asymmetrically substituted perylene imide derivatives PIa and PIx display phosphorescence in glassy matrices at 77 K. The lifetime is 49.0 ms for PIa and 13.5 ms for PIx. The triplet energy is 1.79 eV for PIa and 1.68 eV for PIx as confirmed by sensitization experiments of the C(60) triplet.

Journal: :Kobunshi Kagaku 1970

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2008
José A Yunesa Angelo A Cardoso Rosendo A Yunes Rogério Corrêa Fátima de Campos-Buzzi Valdir Cechinel Filho

The present study describes the cytotoxic properties of a series of 15 cyclic imides observed against different endothelial cells and K562 leukemic cells. Initially, eight structurally unrelated compounds were evaluated against cultured bone marrow endothelial cells (BMEC) and human umbilical vein endothelial cells (HUVEC). Only two imides showed cytotoxic activity at 10 microM. In continuation...

Journal: :Canadian Journal of Chemistry 1971

Journal: :Chemical communications 2004
Liang Xu Suhong Zhang Mark L Trudell

A novel and practical procedure for preparation of imides is described using chromium(VI) oxide to catalyze the oxidation of N-alkylamides with periodic acid in the presence of acetic anhydride in acetonitrile.

Journal: :Chemical communications 2014
Yu Zhang Ling Pan Yunjia Zou Xianxiu Xu Qun Liu

We reveal here the unique reactivity of α-(alkylideneamino)nitriles toward molecular oxygen. Thus, α-(alkylideneamino)nitriles can serve as the imide building block for the efficient synthesis of imides in the absence of transition metals under extremely mild conditions.

Journal: : 2023

This study includs the synthesis of some new Amic acid and Imides,starting from esters [S1] Terephthalic which then converted toits hydrazide [S2] to amic derivatives [S3-S7] finally withimides [S8-S12]. Preparing ester by usual esterification ofterephthalic with absolute ethanol in acidic medium, hasconverted its reacting it hydrazine hydrate. Theamic have been synthesized reaction ofhydrazide...

Journal: :Angewandte Chemie 2022

Molecular carbon imides featuring 12-fold [5]helicenes around four cores are reported by Guogang Liu, Yan Li, Zhaohui Wang et al. in their Research Article (e20224769). A molecule is shown the middle, surrounded building blocks of perylene diimides and benzenes.

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