Pt- and Au-catalyzed oxidative cyclization of 2-ethenyl-1-(prop-2′-yn-1′-ol)benzenes to naphthyl aldehydes and ketones: catalytic oxidation of metal-alkylidene intermediates using H2O and H2O2
Pt- and Au-catalyzed oxidative cyclization of 2-ethenyl-1-(prop-2′-yn-1′-ol)benzenes to naphthyl aldehydes and ketones: catalytic oxidation of metal-alkylidene intermediates using H<sub>2</sub>O and H<sub>2</sub>O<sub>2</sub>
作者:Bhanu Pratap Taduri、Shariar Md. Abu Sohel、Hsin-Mei Cheng、Guan-You Lin、Rai-Shung Liu
DOI:10.1039/b700659d
日期:——
2-Ethenyl-1-(prop-2â²-yn-1â²-ol)benzenes was cyclized through catalytic oxidation with PtCl2/CO/H2O and PEt3AuCl/H2O2; the metalânaphthylidene intermediates were identified and oxygenated with water and H2O2, respectively; for the efficiency of cyclization, the Au catalytic system is superior to that of the PtCl2-catalysis because of its compatibility toward diverse alcohol substrates including both internal alkynes and terminal alkynes.
Image recording method, energy radiation curable ink and image recording apparatus
申请人:Nakajima Atsushi
公开号:US06910764B2
公开(公告)日:2005-06-28
An image recording method, an image recording apparatus and energy radiation curable ink which can print high-quality images. The image recording method for ejecting and placing energy radiation curable ink which is cured when irradiated with energy radiation according to an ink-jet recording method, irradiating the energy radiation on a recording medium on which ink dots are formed, and printing an image, has: ejecting the energy radiation curable ink to the recording medium from a plurality of nozzles provided for an ink-jet head, moving the recording medium to the ink-jet head relatively, and forming the image; and controlling a range to which the energy radiation is irradiated, so as to correspond to a recording width of the ink-jet head.