35221-11-5

Upstream product

• 52421-32-6 6-(benzylidene-1'-methylhydrazino)-1,3-dimethyluracil 
• 99261-95-7 1,6,8-Trimethyl-3-phenyl-1H,8H-pyrimido[4,5-e][1,3,4]thiadiazine-5,7-dione 
• 93577-93-6 5-bromo-1,3-dimethyl-6-(1'-methylbenzylidenehydrazino)uracil 

Relevant academic research and scientific papers

Lithium transition metal compound oxide and lithium secondary cell using the same

PROBLEM TO BE SOLVED: To provide a lithium-transition metal compound oxide having stable crystal structure and less cycle deterioration, which is used for a positive electrode active material for a lithium secondary battery with good cycle characteristic. SOLUTION: Lithium-transition metal compound oxide is represented by a composition formula Li1+xM1-x-yAlyO2-zFz (M is a kind of element selected among Co, Ni, Mn; 0=x=0.2; 0.05=y=0.2; 0.01=z=0.3) and has a lamellar halite crystal structure and the diffraction peak ratio I003/I104 of 1.7 or more, wherein I003 and I104 are diffraction peak strength at the (003) and (104) sides in X-ray diffraction method using CuKα ray. The lithium-transition metal compound oxide is used for a positive electrode active material for lithium secondary batteries.

Reaction of 6-Arylidenehydrazino-1,3-dimethyluracils with Thionyl Chloride Leading to Purine, Thiazolopyrimidine, Pyrimidothiadiazine, Pyrazolopyrimidine, and Thiadiazolopyrimidine Derivatives

The reaction of 6-arylidenehydrazino-1,3-dimethyluracils with thionyl chloride in benzene afforded purine, thiazolopyrimidine, pyrimidothiadiazine, pyrazolopyrimidine, and thiadiazolopyrimidine derivatives, while

N-Bromosuccinimide in Heterocyclic Synthesis. Synthesis of Pyrazolopyrimidines, Pyrimido-as-triazines, and Pyrimidopyridazines from 6-Arylidenehydrazino-1,3-dimethyluracil Derivatives

Reactions of 6-arylidenehydrazino-1,3-dimethyluracil derivatives with N-bromosuccinimide leading to pyrazolopyrimidines, pyrimido-as-triazines, and pyrimidopyridazines are described.