Showing papers by "José Elguero published in 1976"
76 citations
TL;DR: In this article, it was shown that 1J, 2J, and 3J coupling constants have been measured in the 13C nmr spectrum of indazole derivatives, and that 3J is the smallest coupling constant known.
Abstract: Synthesis of all monodeuterio indazole derivatives has allowed the assignment of the seven carbons in the 13C nmr spectrum of indazole. Some 1J, 2J, and 3J coupling constants have been measured fro...
23 citations
TL;DR: In this article, it was shown that the eight-membered ring of the N,N-disubstituted 3,4dihydro-1,6-benzodiazocine-2,5-diones has a boat conformation, the interconversion barrier of which is slightly over 100 kJ/mol.
Abstract: From a 1H nmr study it has been possible to show that the eight-membered ring of the N,N′-disubstituted 3,4-dihydro-1,6-benzodiazocine-2,5-diones has a boat conformation, the interconversion barrier of which is slightly over 100 kJ/mol.
6 citations
TL;DR: In this article, the 2.4-Methylbenzimidazole and its 5,6-dimethyl derivative were converted by pyridine into cyclic dimers, the spectra of which were described.
Abstract: 2-[2-(4-Methylpyridinio)ethyl]benzimidazole (7a) and its 5,6-dimethyl derivative (7b) are converted by pyridine into cyclic dimers (8a and b), the spectra of which are described. An X-ray diffraction study of the tetrahydrobis-benzimidazodiazocine (8a) has verified the molecular structure.
5 citations
1 citations