In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Application In Synthesis of 6-Methylpyridazin-3(2H)-one, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 13327-27-0, name is 6-Methylpyridazin-3(2H)-one. In an article£¬Which mentioned a new discovery about 13327-27-0
An Analysis of the 13C N.M.R. Spectra of Pyridazin-3-ones and Some Specifically Deuteriated Derivatives
Optimum conditions are reported for the formation of <4-2H>– and <6-2H>-pyridazin-3(2H)-ones by gas-phase decarboxylation of the corresponding <2H>carboxylic acids or cyclisation of the appropriate (N-2H>- or <3-2H>-5-(1,2-diazabutadien-4-ylidene)-2,2-dimethyl-1,3-dioxan-4,6-dione.By the use of deuterated derivatives, the 13C n.m.r. parameters of pyridazin-3(2H)-one are assigned as follows: C(3), delta 164.00 (3JCH 8.6 Hz); C(4), delta 130.45 (1JCH 171.9, 3JCH 6.1 Hz); C(5), delta 134.71 (1JCH 168.3, 2JCH(6) 8.0 Hz); C(6), delta 139.02 (1JCH 188.9, 2JCH 2.7, 3HCH(4) 7.9 Hz).Chemical shifts and coupling constants of a range of C-methyl-, N-t-butyl-, and N-aryl-pyridazin-3(2H)-ones are reported, and the substituent effect are correlated with model systems.
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Pyridazine – Wikipedia,
Pyridazine | C4H4N317 – PubChem