1009103-92-7Relevant academic research and scientific papers
H-β-zeolite-catalysed hydroarylation of styrenes
Mohan, Darapaneni Chandra,Patil, Rajendra D.,Adimurthy, Subbarayappa
, p. 3520 - 3525 (2012)
The hydroarylation of styrenes with various arene(heteroarene) compounds using H-β-zeolite as a green and recyclable heterogeneous catalyst under mild reaction conditions has been developed. The catalyst showed versatility and high selectivity (up to 100a€‰%) of desired 1,1-diarylalkanes in cyclohexane as solvent under the conditions studied. The catalyst could be reactivated by simple treatment with mineral acid at room temperature for better catalytic activity. Hydroarylation of styrenes with variousarene(heteroarene) compounds using H-β-zeolite as a green, heterogeneous and reusable catalyst under mild conditions is reported.
KHSO4: A highly efficient and reusable heterogeneous catalyst for hydroarylation of styrenes
Patil, Rajendra D.,Joshi, Girdhar,Adimurthy, Subbarayappa
experimental part, p. 1093 - 1099 (2012/07/16)
Hydroarylation of styrenes with arenes/heteroarenes using KHSO4 (10 mol%) as an efficient heterogeneous catalyst is described. High conversion and selectivity (>99%) were observed for hydroarylation of styrenes with 2-naphthol at reflux temperature of 1,2-dichloroethane. Yields were quantitative with all styrenes. Moderate to good conversions and selectivities were achieved with other aromatics and heteroaromatics under the same conditions. Regeneration and reusability of KHSO4 were demonstrated. Addition of a trace amount of water could help to reactivate the KHSO4 through dispersion and to facilitate the hydroarylation reaction. Springer-Verlag 2010.
Synthesis of salicylaldehydes bearing bulky substituents in the positions 3 and 5
Kochnev,Oleynik,Oleynik,Ivanchev,Tolstikov
, p. 1125 - 1129 (2008/09/17)
Reaction of 2,4-disubstituted phenols with paraformaldehyde in the presence of SnCl4 and 2,6-lutidine afforded a number of new salicylaldehydes, containing bulky substituents (tert-butyl, 1-phenylethyl, 1-(4-tert- butylphenyl)ethyl, α-cumyl, and trityl) in the positions 3 and 5.
