19315-35-6Relevant academic research and scientific papers
Efficient and convenient heterogeneous palladium-catalyzed regioselective deuteration at the benzylic position
Kurita, Takanori,Hattori, Kazuyuki,Seki, Saori,Mizumoto, Takuto,Aoki, Fumiyo,Yamada, Yuki,Ikawa, Kanoko,Maegawa, Tomohiro,Monguchi, Yasunari,Sajiki, Hironao
, p. 664 - 673 (2008/12/21)
The Pd/C-catalyzed efficient and regioselective hydrogen-deuterium (H-D) exchange reaction on the benzylic site proceeded in D2O in the presence of a small amount of H2 gas. The use of the Pd/C-ethylenediamine complex [Pd/C(en)] as a catalyst instead of Pd/C led to the efficient deuterium incorporation into the benzylic site of Obenzyl protective groups without hydrogenolysis. These H-D exchange reactions provide a post synthetic and D2-gas-free deuterium-labeling method on a wide variety of benzylic sites using D2O as the deuterium source and heterogeneous Pd/C or Pd/C(en) as a reusable heterogeneous palladium catalyst under mild and neutral conditions.
Determination of the Heats of Formation of the Isomeric Xylylenes by Ion Cyclotron Double-Resonance Spectroscopy
Pollack, Steven K.,Raine, Brian C.,Hehre, Warren J.
, p. 6308 - 6313 (2007/10/02)
Heats of formation of 50 and 53 kcal mol -1 have been measured for p- and o-xylylene by using pulsed-ion cyclotron double-resonance spectroscopy.In addition a lower bound of 76 kcal mol-1 has been obtained for the heat of formation o
