Applications of NMR spectroscopy in the field of polycondensed aromatic systems

Autor: F. Geerts-Evrard, R.W. Wedel, Nicole Defay, J. R. Jones, R.H. Martin, P. H. Given
Rok vydání: 1965
Předmět:
Zdroj: Tetrahedron. 21:1833-1845
ISSN: 0040-4020
DOI: 10.1016/s0040-4020(01)98654-5
Popis: Ortho and peri effects due to cyclic heteroatoms and (thio)carbonyl functions have been compared in the (1-thio)chromone and (thio)xanthen-9-one series. As a result of this work, the 7H-benzo[c]thioxanthen-7-one structure XVI has been assigned to the benzothioxanthone first isolated by Davis and Smile, 3 and the 12H-benzo[b]thioxanthen-12-one structure XVII has been assigned to a new compound synthesized as part of this study. IR spectroscopy has been used to provide certain supplementary information
Databáze: OpenAIRE