6307-87-5Relevant articles and documents
POLYIMIDE-POLYARYLENE POLYMERS
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Paragraph 0119-0121, (2021/05/21)
Disclosed is a bis-imide compound comprising two or more aryl moieties substituted with ethynyl moieties and the two or more aryl moieties each having one or more polar substituents. Further disclosed is a polymer composition comprising a copolymer polymerized from a monomer mixture of (a) one or more first monomers comprising a bis-imide compound comprising two or more aryl moieties substituted with ethynyl moieties and the two or more aryl moieties each having one or more polar substituents; and (b) one or more second monomers comprising two or more cyclopentadienone moieties. The polymer compositions exhibit favorable properties for use in electronics and displays applications.
PROTEIN KINASE INHIBITORS FOR PROMOTING LIVER REGENERATION OR REDUCING OR PREVENTING HEPATOCYTE DEATH
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Page/Page column 40; 52; 53, (2020/02/14)
The invention relates to compounds of formula (I) which are inhibitors of MKK4 (mitogen-activated protein kinase kinase 4) and their use in promoting liver regeneration or reducing or preventing hepatocyte death. The compounds selectively inhibit protein kinase MKK4 over protein kinases JNK and MKK7. (I), wherein R x, R y , R z and R zz are selected from: a) R x and R y are F and R z and R zz are H; b) R x, R y and R zz are independently halogen and R z is H; c) R x R z and R zz are independently halogen and R y is H; and d) R x R y and R z are independently halogen and R zz is H
Catalytic Direct Construction of Cyano-tetrazoles
Ma, Jun-An,Peng, Xing,Xiao, Ming-Yang,Xue, Xiao-Song,Zhang, Fa-Guang,Zheng, Meng-Meng
, p. 7762 - 7767 (2020/10/09)
Cyano-tetrazole is the first reported compound that bears four nitrogen atoms in a single five-membered ring. This unique molecular scaffold has long been ignored after its discovery in 1885, mainly attributed to the scarcity of available synthetic methods. Indeed, the most popular approach to tetrazoles (that is the cycloaddition reaction between nitriles and azides) has inevitably excluded the possibility of introducing valuable cyano groups to decorate the final heterocyclic cores. Here, we describe a completely different disconnection strategy to the long time-pursued cyano-tetrazoles via a simple, direct, and practical cycloaddition transformation between readily accessible aryl diazonium salts and diazoacetonitrile. This method provides both regioisomers of disubstituted tetrazoles from the same set of starting materials in a metal cation controlled fashion.