Product Details of 2199-44-2. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: Ethyl 3,5-Dimethyl-2-pyrrolecarboxylate, is researched, Molecular C9H13NO2, CAS is 2199-44-2, about Deacylation and deformylation of pyrroles.
3-Acetyl- and 3-formyl-pyrroles are smoothly deacylated using either ethanedithiol/BF3 or (more conveniently) ethylene or neopentyl glycols in presence of p-MeC6H4SO3H. The reaction does not proceed when the acetyl or formyl group is in the 2-position, and in these cases the corresponding ketal or acetal is isolated. A mechanism for the deacylation process is proposed and is confirmed by deacylation of a pyrrole I bearing a cyclopentanone ring; under these circumstances the cleaved group is retained in the pyrrole II, and is identified.
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Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com