Recommanded Product: 885272-25-3. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 2-(5-Methoxy-2-oxoindolin-3-yl)acetic acid, is researched, Molecular C11H11NO4, CAS is 885272-25-3, about Mechanistic study of reversible solid-state melt isomerization of 2-oxindoles to 2-quinolinones and its occurrence in a mass spectrometer. Author is Martinez-Gudino, Gelacio; Perez-Rojas, Nadia A.; Trujillo-Serrato, Joel J.; Mora-Perez, Yolanda; Suarez-Castillo, Oscar R.; Morales-Rios, Martha S..
An eco-friendly equilibrated rearrangement of a series of 2-oxo-3-indolyl acetic acids (1) with 2-oxo-1,2,3,4-tetrahydroquinoline-4-carboxylic acid derivatives (2) was investigated through a solid state melt reaction (SSMR). Mechanistic insight into the thermal rearrangement is provided by 13C-isotopic labeling. The standard mass spectra of 1 and 2 were virtually identical preventing their reliable identification. Reversible interconversion of 1 and 2 was evidenced to occur in the inlet system of a mass spectrometer under electron impact conditions. Relative abundances of fragment ions were found to be a function of temperature
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Pyridazine – Wikipedia,
Pyridazine | C4H4N2 – PubChem