74067-56-4Relevant articles and documents
Restricted Rotation Involving the Tetrahedral Carbon. LVII. Stereodynamics of 9-(2-Alkylphenoxy)-1,4-dimethyltriptycenes
Yamamoto, Gaku,Oki, Michinori
, p. 1953 - 1961 (2007/10/02)
1,4-Dimethyl-9-phenoxytriptycene and its derivatives carrying a methyl, isopropyl, or t-butyl group in the o-position of the phenoxyl moiety were synthesized and their dynamic NMR behavior was studied.These molecules are considered to constitute a bevel g
COMPETITION ENTRE SUBSTITUTION NULCEOPHILE ET REDUCTION CHEZ LES BROMO-9 ANTHRACENES DANS L'ACTION DES ANIONS PHENATE ET METHYLATE; APPLICATION A LA MONO-DEUTERIATION SPECIFIQUE EN MESO EN SERIE ANTHRACENIQUE
Rigaudy, J.,Seuleiman, A.M.,Cuong, Nguyen Kim
, p. 3157 - 3162 (2007/10/02)
Treatment of meso-substituted 9-bromoanthracenes bearing no hydrogen in the α position with potassium phenoxide in DMF gives rise to a competition between nucleophilic substitution and reductive dehalogenation.Derivatives carrying electron attracting groups, 1c (Br), 1e (CN) and 1f (NO2), react essentially by substitution leading to phenolic ethers 2, whereas with non-activated bromides, 1a (H), 1b (C6H5) and 1d (OC6H5), the main reaction is a reduction to anthracenes 3 which should arise from an electron transfer.A reduction of 9-bromoanthracene into anthracene is also observed with sodium methoxide and it is shown, by labelling, that this one must result from a hydride transfer from methoxide.It may be applied to the specific meso-monodeuterization of various anthracenic derivatives.
