17580-79-9Relevant academic research and scientific papers
Palladium-Catalyzed Mizoroki-Heck Reaction of Nitroarenes and Styrene Derivatives
Okita, Toshimasa,Asahara, Kitty K.,Muto, Kei,Yamaguchi, Junichiro
supporting information, p. 3205 - 3208 (2020/04/10)
We have developed a Mizoroki-Heck reaction of nitroarenes with alkenes under palladium catalysis. The use of a Pd/BrettPhos catalyst promoted the alkenylation, whereas other catalysts led to a decrease in the product yield. In addition to nitroarenes, nitroheteroarenes were also applicable to the present reaction. The combination of a nucleophilic aromatic substitution (SNAr) with the denitrative alkenylation produced a multifunctionalized arene in a one-pot operation.
Direct Conversion of Alcohols into Alkenes by Dehydrogenative Coupling with Hydrazine/Hydrazone Catalyzed by Manganese
Das, Uttam Kumar,Chakraborty, Subrata,Diskin-Posner, Yael,Milstein, David
supporting information, p. 13444 - 13448 (2018/09/14)
We have developed unprecedented methods for the direct transformation of primary alcohols to alkenes in the presence of hydrazine, and for the synthesis of mixed alkenes by the reaction of alcohols with hydrazones. The reactions are catalyzed by a manganese pincer complex and proceed in absence of added base or hydrogen acceptors, liberating dihydrogen, dinitrogen, and water as the only byproducts. The proposed mechanism, based on preparation of proposed intermediates and control experiments, suggests that the transformation occurs through metal–ligand cooperative N?H activation of a hydrazone intermediate.
Formation and behavior of fluorescent Lewis acid-base exciplexes and triplexes between 3-aminostilbenes and aliphatic amines
Lewis, Frederic D.,Kalgutkar, Rajdeep S.,Kurth, Todd L.
, p. 1425 - 1434 (2007/10/03)
The excited singlet states of trans-3-aminostilbene and its N-methyl derivatives are strongly fluorescent in cyclohexane solution and have large singlet state dipole moments. Addition of low concentrations of alkylamines results in a continuous red shift
A push-pull 4a,4b-dihydrophenanthrene
Lewis,Kurth,Kalgutkar
, p. 1372 - 1373 (2007/10/03)
Irradiation of (Z)-3-cyano-3′-aminostilbene in the absence of oxygen yields a push-pull substituted dihydrophenanthrene with substantial quinoidal character as evidenced by the pronounced solvent dependence of its absorption spectrum.
