1875-48-5Relevant articles and documents
1,1′-Bipyrroles: Synthesis and stereochemistry
Dey, Sanjeev K.,Lightner, David A.
, p. 9395 - 9397 (2007)
(Chemical Equation Presented) 1,1′-Bipyrrole is synthesized in four steps from hydrazine. A colorless solid, mp 52°C, it sublimes readily at room temperature and forms X-ray quality crystals in which the rings are not coplanar but are nearly orthogonal.
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Krause et al.
, p. 2040 (1972)
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Structural identification between phthalazine-1,4-diones and n-aminophthalimides via vilsmeier reaction: Nitrogen cyclization and tautomerization study
Chung, Cheng-Yen,Li, Sin-Min,Lin, Hui-Yi,Tsai, Shuo-En,Tseng, Ching-Chun,Wong, Fung Fuh
, (2021/05/31)
N-aminophthalimides and phthalazine 1,4-diones were synthesized from isobenzofuran1,3-dione, isoindoline-1,3-dione, furo [3,4-b] pyrazine-5,7-dione, or 1H-pyrrolo [3,4-c] pyridine-1,3dione with monohydrate hydrazine to carry out the 5-exo or 6-endo nitrogen cyclization under the different reaction conditions. Based on the control experimental results, 6-endo thermodynamic hydrohydrazination and kinetical 5-exo cyclization reactions were individually selective formation. Subsequently, Vilsmeier amidination derivatization was successfully developed to probe the structural divergence between N-aminophthalimide 2 and phthalazine 1,4-dione 3. On the other hand, the best tautomerization of N-aminophthalimide to diazinone was also determined under acetic acid mediated solution.
Sulfonation group-containing phthalimide additive, electrolyte containing sulfonating group-containing phthalimide additive and lithium ion battery containing sulfonating group-containing phthalimide additive
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Paragraph 0061-0066; 0096; 0099-0100, (2021/05/29)
The invention provides a sulfonation group-containing o-phthalimide additive, an electrolyte containing the sulfonation group-containing o-phthalimide additive and a lithium ion battery containing the sulfonation group-containing o-phthalimide additive, and belongs to the technical field of lithium ion batteries. The ionic conductivity of the electrolyte and the ionic conductivity and stability of positive and negative silicon-carbon interfacial films can be effectively improved. The structural formula of the additive is based on o-phthalimide and a derivative thereof, and a lithium sulfonate group or a derivative group thereof is grafted at an alpha position of a benzene ring of the o-phthalimide.