Bhatt; Nargund; Patel, Journal of the University of Bombay, Science: Physical Sciences, Mathematics, Biological Sciences and Medicine, 1946, vol. 15/3 A, p. 31,37
The conversion of cyclohexanone and substituted cyclohexanones to alkylarylethersusing a Pd/C-ethylene system is discussed, where ethylene functions as a hydrogen acceptor. The obtained ethers are easily transformed into the corresponding phenols by treatment with BBr3. Direct conversion of cyclohexenone to phenol in the presence of a catalytic amount of Pd/C under an ethylene atmosphere is also
Heterogeneous Palladium-Catalyzed Synthesis of Aromatic Ethers by Solvent-Free Dehydrogenative Aromatization: Mechanism, Scope, and Limitations Under Aerobic and Non-Aerobic Conditions
derivatives and alcohols, both non-aromatic precursors, aryl ethers could be synthesized in good yields and with good selectivities in the presence of a catalytic amount of Pd/C, in one step, without added solvent, in a reaction vessel open to air. For less reactive substrates, the addition of 1-octene in a closed system undernon-aerobicconditions improved the conversion. In addition, the catalyst could
Disclosed are novel alkylarylketocarboxylic acids and 5-substituted tetrazoles represented by the formula ##STR1## wherein Z is aryl or an alkyl of the structure ##STR2## W is a carboxyl moiety or a tetrazole moiety bound to Z at the 5-position of the tetrazole; R.sub.1 is C.sub.4 -C.sub.12 alkyl where Z is aryl and X is oxygen or is C.sub.5 -C.sub.12 alkyl where Z is alkyl and where Z is aryl and X is a bond; R.sub.2 and R.sub.3 are each independently hydrogen, C.sub.1 -C.sub.4 alkyl, hydroxy, C.sub.1 -C.sub.4 alkoxy, halogen, trihalomethyl, nitro, cyano or C.sub.1 -C.sub.4 acyl; R.sub.4, R.sub.5, R.sub.6 and R.sub.7 are each independently hydrogen or C.sub.1 -C.sub.4 alkyl or R.sub.4 and R.sub.6 or R.sub.5 and R.sub.7 can combine to form a carbocyclic ring; X is oxygen, or a bond at the ortho or para position; m is 0, 1 or 2; and n is 0 or 1, and nontoxic, pharmaceutically acceptable addition salts and carboxylic acid esters thereof.
Straightforward heterogeneous palladium catalyzed synthesis of aryl ethers and aryl amines via a solvent free aerobic and non-aerobic dehydrogenative arylation
Aryl ethers have been prepared from cyclohexanone derivatives and various alcohols in the presence of a catalytic amount of palladium on charcoal. The formation of an enol ether followed by an aerobic or non-aerobic dehydrogenation reaction, seem to be the key steps of this transformation. In addition, this new method was also adapted for the synthesis of arylamines.
The present invention relates to polymers comprising repeating unit(s) of the formula (I), and their use in electronic devices. The polymers according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high charge carrier mobilities and high temperature stability of the emission color are observed, if the polymers according to the invention are used in polymer light emitting diodes (PLEDs).