Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Tetrahedron Letters called Practical application of PhI(OAc)2/I2 combination to synthesize benzimidazoles from 2-aminobenzylamine through ring distortion strategy, Author is Saha, Moumita; Mukherjee, Prasun; Das, Asish R., which mentions a compound: 2208-59-5, SMILESS is C1(C2=CC=NC=C2)=NC3=CC=CC=C3N1, Molecular C12H9N3, Reference of 2-(Pyridin-4-yl)-1H-benzo[d]imidazole.
In this present work, the combination of iodobenzenediacetate (PIDA)/iodine has been established as a promising reagent to promote the construction of 2-substituted benzimidazoles from 2-aminobenzylamine and a variety of easily available aldehydes/arylamines through a ring distortion strategy. The present protocol offers mild, metal free, robust conditions to synthesize 2-substituted benzimidazoles in good to excellent yields. In addition, the oxidation prone functional groups show tolerance during the reaction and after completion of the reaction pure products can be easily obtained applying hassle free filtration of the reaction mixture through silica gel bed.
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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles