A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 1240948-77-9, Name is 5-(2-Fluorophenyl)-1H-pyrrole-3-carbonitrile, molecular formula is C11H7FN2. In an article, author is Ruan, Shixiang,once mentioned of 1240948-77-9, SDS of cas: 1240948-77-9.
Facile dehydration of primary amides to nitriles catalyzed by lead salts: The anionic ligand matters
The synthesis of nitrile under mild conditions was achieved via dehydration of primary amide using lead salts as catalyst. The reaction processes were intensified by not only adding surfactant but also continuously removing the only by-product, water from the system. Both aliphatic and aromatic nitriles can be prepared in this manner with moderate to excellent yields. The reaction mechanisms were obtained with high-level quantum chemical calculations, and the crucial role the anionic ligand plays in the transformations were revealed.
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Reference:
Pyrroline – Wikipedia,
,1-Pyrroline | C4H7N – PubChem