6-Aminofulvene-1-aldimine: A Model Molecule for the Study of Intramolecular Hydrogen Bonds
摘要:
An unusually substantial coupling is observed across the hydrogen bond of fully 15 N-labeled compound 1 when it is studied by 1 H and 15 N NMR spectroscopy. The structure was determined by X-ray diffraction and shown to correspond to tautomer 1 a (both in the solid state and in solution). These results open up a new field of hydrogen-bond research by NMR spectroscopic methods.
An unusually substantial coupling is observed across the hydrogen bond of fully 15 N-labeled compound 1 when it is studied by 1 H and 15 N NMR spectroscopy. The structure was determined by X-ray diffraction and shown to correspond to tautomer 1 a (both in the solid state and in solution). These results open up a new field of hydrogen-bond research by NMR spectroscopic methods.
Tautomerism in the Solid State and in Solution of a Series of 6-Aminofulvene-1-aldimines
作者:Dionisia Sanz、Marta Pérez-Torralba、Sergio Hugo Alarcón、Rosa María Claramunt、Concepción Foces-Foces、José Elguero
DOI:10.1021/jo010625v
日期:2002.3.1
the tautomeric equilibria, i.e., on what nitrogen atom is the proton, was determined in the solidstate and in solution. The crystal structure of N[[5-[(phenylamino)methylene]-1,3-cyclopentadien-1-yl]methylene]pyrrole-1-amine (3) has been determined by X-ray analysis. In solution, both N-H and C-H tautomers were observed and their structures assigned by NMR spectroscopy. Particularly useful is the