Electronics and Telecommunications Research Institute; Korea Research Institute of Chemical Technology
Patent: US2007/73058 A1, 2007 ;
Location in patent: Page/Page column 4 ;
1.1: 81.7 percent / pyridine / 3 h / 20 °C 2.1: thiourea / ethanol / 2 h / Heating 2.2: 87 percent / H2O; NaHCO3 / ethanol / 3 h / Heating View Scheme
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Reppe et al.
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