10.1021/jo01310a057
The research explores the synthesis and reactions of various organic compounds. It includes the preparation of indole derivatives using compounds like 1-methyl-2-vinylpyrrole, methyl propiolate, and hydroquinone, resulting in products such as dimethyl indole-6,7-dicarboxylate and methyl 1-tert-butylindole-7-carboxylate, characterized by melting points, IR spectra, NMR spectra, and elemental analysis. Additionally, the study introduces alkyl and aryl α-methoxyvinyl carbonates (3a-c) as efficient reagents for carboalkoxylation and carboaryloxylation of amines, including weakly basic ones, under mild conditions, yielding high-quality N-carboalkoxylated and N-carboaryloxylated compounds. The research also examines the reactions of [3-(dimethylamino)-2-azaprop-2-en-1-ylidene]dimethylammonium chloride with hydrazines and amidines, producing 1,2,4-triazoles and substituted products, with detailed spectral data confirming the structures of the synthesized compounds.