Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 623-25-6, Name is α,α’-Dichloro-p-xylene, molecular formula is C8H8Cl2. In an article, author is Lamera, Esma,once mentioned of 623-25-6, Product Details of 623-25-6.
A new, convenient, and efficient method for the synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-diones is developed starting from phthalhydrazide, aromatic aldehydes, and malononitrile using 4-N, N-dimethylaminopyridin as catalyst. This modified route provides much higher yields and a simple work-up procedure of products. Also this methodology is of interest due to the use of ethanol as a solvent without use of any toxic metals as catalyst, thus minimizing the cost, the operational hazards, and environmental pollution.
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Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem