56746-12-4Relevant academic research and scientific papers
Sequential oxopyridinium betaine cycloaddition-palladium catalysed cyclisation-anion capture processes
Fielding, Mark R,Grigg, Ronald,Sridharan, Visuvanathar,Thornton-Pett, Mark,Urch, Christopher J
, p. 7737 - 7748 (2001)
Katritzky's oxopyridinium betaine cycloaddition is employed to generate bridged bicyclic substrates suitable for our palladium(0) catalysed cyclisation-anion capture methodology. A variety of polycyclic heterocycles have been synthesised via monocyclisation-organotin(IV) capture with or without incorporation of carbon monoxide. Sequential cycloaddition-cyclisation can be performed as a one pot process to deliver substantial gain in molecular complexity.
Flapping viscosity probe that shows polarity-independent ratiometric fluorescence
Kotani, Ryota,Sotome, Hikaru,Okajima, Hajime,Yokoyama, Soichi,Nakaike, Yumi,Kashiwagi, Akihiro,Mori, Chigusa,Nakada, Yuki,Yamaguchi, Shigehiro,Osuka, Atsuhiro,Sakamoto, Akira,Miyasaka, Hiroshi,Saito, Shohei
supporting information, p. 5249 - 5256 (2017/07/10)
A variety of fluorescent molecular viscosity probes have been widely used for mapping the local viscosity in cells and for monitoring the microenvironments in materials. However, their viscosity-sensing structural design still relies strongly on molecular
DABCO-catalyzed [3+2] cycloaddition reactions of azomethine imines with N-aryl maleimides: Facile access to dinitrogen-fused heterocycles
Jia, Qianfa,Chen, Lei,Yang, Gongming,Wang, Jian,Wei, Jia,Du, Zhiyun
supporting information, p. 7150 - 7153 (2015/12/12)
DABCO-catalyzed [3+2] cycloaddition of azomethine imines with maleimides has been developed. This method could efficiently furnish dinitrogen-fused tetracyclic heterocycles in high levels of regioselectivity and with good yields.
Evaluation of N-aromatic maleimides as free radical photoinitiators: A photophysical and photopolymerization characterization
Miller, Chris W.,Sonny J?nsson,Hoyle, Charles E.,Viswanathan, Kalyanaraman,Valente, Edward J.
, p. 2707 - 2717 (2007/10/03)
Photopolymerizable compositions were prepared using acrylate monomers in combination with various N-aromatic maleimides. N-aromatic maleimides were segregated into two groups: those that could adopt a planar conformation and those that could not adopt a planar conformation. The maleimides were characterized using single-crystal X-ray diffraction spectroscopy, laser flash photolysis spectroscopy, UV-vis absorption spectroscopy, and photodifferential scanning calorimetry. Planar N-aromatic maleimides were found to have a low relative excited-state triplet yield, showing significant shift of the primary maleimide UV absorption band with changes in solvent polarity, and did not initiate free radial polymerization upon direct UV excitation. Twisted N-aromatic maleimides have a higher relative triplet yield, show negligible shift of the primary maleimide UV absorption band, with solvent polarity, and initiate free radical polymerization upon direct excitation. Addition of benzophenone was found to dramatically increase the initiation efficiency of both planar and twisted N-aromatic maleimides to levels approaching that of conventional cleavage photoinitiators.
N-arylmaleimide derivatives
Miller, Christopher W.,Hoyle, Charles E.,Valente, Edward J.,Zubkowski, Jeffrey D.,Joensson, E. Sonny
, p. 563 - 571 (2007/10/03)
Nine phenyl substituted N-phenylmaleimide monomers for photopolymerization studies have been characterized by x-ray crystallography. Structures for N-(2′-t-butylphenyl)maleimide (1), P21/n, a = 10.197(3) A, b = 11.904(4) A, c = 10.496(5) A, β =
