Indole, first isolated in 1866, has the molecular formula C8H7N, and it is commonly synthesized from phenylhydrazine and pyruvic acid, 19005-93-7, formula is C9H7NO, Name is 1H-Indole-2-carbaldehyde. although several other procedures have been discovered.Indole is a colourless solid having a pleasant fragrance in highly dilute solutions. It melts at 52.5° C (126.5° F). Formula: C9H7NO.
Zhang, Jian;Gao, Yan-Shan;Gu, Bu-Ming;Yang, Wu-Lin;Tian, Bo-Xue;Deng, Wei-Ping research published 《 Cooperative N-heterocyclic Carbene and Iridium Catalysis Enables Stereoselective and Regiodivergent [3 + 2] and [3 + 3] Annulation Reactions》, the research content is summarized as follows. A cooperative N-heterocyclic carbene (NHC)/iridium catalysis has been developed to achieve highly stereoselective and regiodivergent [3 + 2] and [3 + 3] annulation reactions of 2-indolyl allyl carbonates I (R = H, Me; R1 = H, OMe, Me, F, Cl; R1 = H, OMe, Cl) with enals R3CH=CHCHO (R1 = Ph, hexyl, 4-chlorophenyl, furan-2-yl, etc.). The use of the NHC catalyst has introduced switchable homoenolate and enolate intermediates from the common enal precursor via a simple adjustment of reaction conditions in a predictable manner. This protocol furnishes two types of biol. important products, pyrrolo[1,2-a]indoles II and pyridine[1,2-a]indoles III, with high diastereo- and enantioselectivities (up to >20:1 dr and >99% ee). Notably, all four stereoisomers of these products with two vicinal stereocenters could be afforded through permutations of the enantiomers of the two chiral catalysts. Mechanistic investigations and further computational d. functional theory calculations give an explanation of the origin of the regioselectivity. In addition, the NHC-enolate intermediate generated from formylcyclopropanes IV (R4 = Ph, tert-Bu, naphthalen-2-yl, etc.) was also compatible in this cooperative catalytic system and thus the arsenal of optically pure pyrrolo[1,2-a]indole products V was enriched.
Formula: C9H7NO, 1H-Indole-2-carbaldehyde is a useful research compound. Its molecular formula is C9H7NO and its molecular weight is 145.16 g/mol. The purity is usually 95%.
1H-Indole-2-carbaldehyde is a useful research chemical used as a reactant in the synthesis of substituted 2-amino-4H-chromenes and benzochromenes using K2CO3 as catalyst.
1H-Indole-2-carbaldehyde is a solvent that has been used in the protein data and molecular modeling study. The 1H NMR spectrum of this compound showed an intense signal at δ 4.8 ppm, corresponding to the hydroxyl proton. This solvent also has fluorescence properties, as shown by its photophysical and structural analysis. The 1H-indole-2-carbaldehyde molecule has an active methylene group and an oxindole ring with amine substituents., 19005-93-7.
Referemce:
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