Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 140-75-0, Name is (4-Fluorophenyl)methanamine, molecular formula is C7H8FN. In an article, author is Kidwai, Mazaahir,once mentioned of 140-75-0, Formula: https://www.ambeed.com/products/140-75-0.html.
A new green protocol has been developed for the synthesis of 2H-indazolo[2,1-b]phthalazine-triones via one-pot, three-component condensation reaction of aromatic aldehydes with 1,3-dicarbonyl compounds and phthalhydrazide using reusable dodecylphosphonic acid (DPA) as heterogeneous solid acid catalyst under solvent-free conditions. This protocol provides a novel and improved method for obtaining 2H-indazolo[2,1-b]phthalazine-triones in terms of good yields with little catalyst loading. (C) 2012 Elsevier Ltd. All rights reserved.
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Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem