178200-84-5Relevant academic research and scientific papers
S,O-Ligand-Promoted Pd-Catalyzed C?H Olefination of Anisole Derivatives
Fernández-Ibá?ez, M. ángeles,Jia, Wen-Liang,Sukowski, Verena,van Borselen, Manuela,van Diest, Rianne
supporting information, p. 4132 - 4135 (2021/08/24)
The C?H olefination of substituted anisole derivatives by a Pd/S,O-ligand catalyst is reported. The reaction proceeds under mild conditions with a broad range of substituted aryl ethers bearing both electron donating and withdrawing substituents at ortho,
Synthesis and Topochemistry of 2,5-Bisacrylate-Substituted 1,4-Benzoquinones
Irngartinger, Hermann,Herpich, Ruediger
, p. 595 - 604 (2007/10/03)
The 2,5-bisacrylate-substituted 1,4-benzoquinone bisketal 7a was synthesized by electrochemical oxidation of the corresponding dimethoxybenzene 6. The methyl ester 7a was transesterified to the corresponding ethyl, n-propyl and isopropyl esters 7b-7d by T
Solid state behaviour of vinyl quinones
Irngartinger,Lichtenthaeler,Herpich,Stadler
, p. 349 - 360 (2007/10/03)
2,5-Bisvinyl-1,4-benzoquinones 1 and 2-vinyl-1,4-benzoquinones 2 substituted with aryl or ester end groups have been synthesized. The 2,5-bisstyryl-1,4-benzoquinones 1 (R=phenyl, p-tolyl, o-tolyl) crystallize with a 7 angstrom-stacking axis. But only for the o-tolyl derivative the contacts between the vinyl groups are close enough to allow a four-center type photopolymerization. The ester derivative 1 (R=COOEt) has a layer structure and can be photooligomerized in the crystal. The generated cyclobutane subgroups have twofold symmetry. The vinylquinones 2 (R=aryl) may be dimerized photochemically in the crystal at the vinyl groups to centrosymmetric cyclobutanes. Crystals with 4 angstrom stacking axis are also photoreactive.
