A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 1878-68-8, Name is 4-Bromophenylacetic acid, molecular formula is C8H7BrO2. In an article, author is Yoosefian, M.,once mentioned of 1878-68-8, Application In Synthesis of 4-Bromophenylacetic acid.
Synthesis and Theoretical Study of Intramolecular Hydrogen Bond at Two Possible Positions in Pyrazolo[1,2-b]phthalazine
Properties of dimethyl 3-(alkylamino)-5,10-dioxo-5,10-dihydro-1H-pyrazolo[1,2-b]phthalazine-1,2-dicarboxylate and its derivatives were studied by means of ab initio method. NO2 derivative of title compound was synthesized and the nature of its intramolecular hydrogen bond (HB) was investigated. Furthermore, the topological properties of the electron density distributions for N-H…O intramolecular bridges were analyzed in terms of the Bader theory of atoms in molecules (AIM). The electron density (?) and Laplacian (?2?) properties, estimated by AIM calculations, indicated that O…H bond possesses low ? and positive ?2? values which are in agreement with electrostatic character of the HBs, whereas N-H bonds have covalent character (?2?<0). Moreover, steric effect of the t-Bu group on structure and topological parameters of pyrazolo[1,2-b]phthalazine conformers was studied. Finally, the powerful method of Espinosa was used to obtain the H-bond energy. Interested yet? Keep reading other articles of 1878-68-8, you can contact me at any time and look forward to more communication. Application In Synthesis of 4-Bromophenylacetic acid.
Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem