Aryl ether synthesis via low-cost Ullmann coupling systems
نویسندگان
چکیده
منابع مشابه
Tuning of tetrathiafulvalene properties: versatile synthesis of N-arylated monopyrrolotetrathiafulvalenes via Ullmann-type coupling reactions
An Ullmann-type coupling reaction was employed for the preparation of several N-arylated monopyrrolotetrathiafulvalenes with variable substitution patterns. Spectroscopic and electrochemical properties of the coupling products strongly depend on the electronic nature of the aromatic substituents due to their direct conjugation with the tetrathiafulvalene chromophore. The crystal packing of the ...
متن کاملNovel approach to biscarbazole alkaloids via Ullmann coupling--synthesis of murrastifoline-A and bismurrayafoline-A.
Unprecedented Ullmann couplings of murrayafoline-A with either 6-bromo- or 4-bromocarbazole derivatives provide highly efficient synthetic routes to the biscarbazole alkaloids murrastifoline-A (6 steps, 66% overall yield) and bismurrayafoline-A (6 steps, 28% overall yield).
متن کاملSynthesis-in-place of highly-conjugated oligothiophene micropatterns via photo-activated Ullmann coupling on copper surface.
In contrast to the traditional thermally-activated Ullmann coupling, a photo-activated Ullmann coupling for facile synthesis of oligothiophene and polythiophene films and micropatterns is reported.
متن کاملReductive Ullmann Coupling of Aryl Halides by Palladium Nanoparticles Supported on Cellulose, a Recoverable Heterogeneous Catalyst
Palladium nanoparticles supported on cellulose were prepared without using any reducing agent and used as a highly efficient catalyst for the Ullmann reductive coupling of aryl halides in the presence of zinc, in a water-alcohol mixture as solvent in air. The obtained palladium nanoparticles were characterized by scanning electron microscopy (SEM), FTIR, thermogravimetric analysis (TGA) and ICP...
متن کاملAryl-aryl coupling via directed lithiation and oxidation.
Aryl lithium reagents formed by directed lithiation reactions undergo transmetallation with copper(I) salts to form organocuprates, which may be efficiently oxidized to yield ortho-substituted biaryls.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Arkivoc
سال: 2010
ISSN: 1551-7012
DOI: 10.3998/ark.5550190.0010.e23