The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Mercury(II) complexes of β-diketones》. Authors are Nonhebel, D. C..The article about the compound:2,6-Dimethyl-3,5-heptanedionecas:18362-64-6,SMILESS:CC(C)C(CC(C(C)C)=O)=O).Name: 2,6-Dimethyl-3,5-heptanedione. Through the article, more information about this compound (cas:18362-64-6) is conveyed.
Hg derivatives of diisobutyrylmethane and dipivaloylmethane are enolates, not cyclic derivatives like other metal β-diketones, as shown by infrared and reactions with BzCl and p-nitrobenzoyl chloride to give O-acylated β-diketones.
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Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica