Recommanded Product: 50501-07-0. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: Ethyl indoline-2-carboxylate, is researched, Molecular C11H13NO2, CAS is 50501-07-0, about Convenient synthesis of dioxopiperazines via aminolysis of α-(pyruvylamino) esters. Author is Marshall, J. A.; Schlaf, T. F.; Csernansky, J. G..
Dioxopiperazines I and II were prepared from indoline III by cyclizing with MeNH2 to give dioxopiperazine IV, which was dehydrated to methylene compound V. V added AcSH to give I and II. Analogous reactions starting with pyrrole VI gave dioxopiperazine VII.
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Reference:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics