Anil-Synthese. 3. Mitteilung [1] Über die Darstellung von Styryl-Derivaten aus methyl-substituierten carbocyclischen Aromaten
作者:A. E. Siegrist、P. Liechti、H. R. Meyer、K. Weber
DOI:10.1002/hlca.19690520836
日期:——
1,4-Diphenylbutadien-, Tolan-, 1,4-Diphenylbutadiin-, Naphtalin-, Anthracen-und Phenanthren-Reihe werden mit Anilen aromatischer Aldehyde in Dimethylformamid in Gegenwart von Kaliumhydroxid oder Kalium-t-butylat zu Styryl-Derivaten umgesetzt.
甲基取代碳环芳烃,二苯基,三联苯,Stilben-,1,4-二苯基丁二烯-,Tolan-,1,4-二苯基丁二烯-,萘酚-,蒽环与苯并蒽-苯并二氮杂-苯并二氢萘Gegenwart von Kaliumhydroxid oder Kal-叔丁基中的二甲基甲酰胺。
Synthesis, Characterization, and Optical Response of Dipolar and Non-Dipolar Poly(phenylenevinylene) Dendrimers
作者:Enrique Díez-Barra、Joaquín C. García-Martínez、Sonia Merino、Riánsares del Rey、Julián Rodríguez-López、Prado Sánchez-Verdú、Juan Tejeda
DOI:10.1021/jo015764r
日期:2001.8.1
New dipolar and non-dipolar poly(phenylenevinylene) dendrimers bearing electron-donating and electron-withdrawing groups have been efficiently synthesized using Heck and Horner-Wadsworth-Emmons reactions. The photoluminescence of these systems may be tuned in the blue zone by choosing the appropriate peripheral groups. Despite the meta-substitution pattern, large Stokes shifts can be observed when
A Horner-Wadsworth-Emmons approach to dipolar and non-dipolar poly(phenylenevinylene)dendrimers
作者:Enrique Díez-Barra、Joaquín C García-Martímez、Julián Rodríguez-López
DOI:10.1016/s0040-4039(99)01733-5
日期:1999.11
The synthesis of firstgeneration phenylenevinylene dendrimers is described. The Horner-Wadsworth-Emmons reaction is used for this purpose. The reported methodology permits the preparation of dipolar and non-dipolar structures. A second generation dendron bearing peripheral electron donor groups is also reported.
A refined verson of the Meyers' modification of the RambergâBäcklund reaction employing the reagent alumina-supported KOHâCBr2F2âButOH allows α- and αâ²-hydrogen-bearing sulfones of various structural types to be converted into alkenes.