10-methyl-9-phosphaanthracene

Autor: Hans Vermeer, Armin Schweig, W. Schäfer, F.M. Bickelhaupt, C. Jongsma
Rok vydání: 1975
Předmět:
Zdroj: Tetrahedron. 31:2931-2935
ISSN: 0040-4020
DOI: 10.1016/0040-4020(75)80313-9
Popis: The synthesis of 10-methyl-9-phosphaanthracene (1b) is described. Its stability is found to be intermediate between that of the unsubstituted parent compound (1a) and of the 10-phenyl derivative (1c). The electronic structure of this new phosphaaromatic system is studied, especially by photoelectron spectroscopy. As inductive and/or conjugative effects of the substituents are shown to be of minor importance, it is concluded that mainly steric effects stabilize the 9-phosphaanthracene system.
Databáze: OpenAIRE