The Pd-promoted Ga/HZSM-5 catalyst was prepared by impregnation method and its catalytic activity for non-oxidative aromatization of C1 to C3 hydrocarbons was assessed using a microreactor-GC system operated with temp...The Pd-promoted Ga/HZSM-5 catalyst was prepared by impregnation method and its catalytic activity for non-oxidative aromatization of C1 to C3 hydrocarbons was assessed using a microreactor-GC system operated with temperature at 823 K and space velocity at 410 h-1. The catalyst is more catalytically active for methane conversion than Ga/HZSM-5. The mass spectroscopy analyses confirmed that 13CH4 was converted to aromatic products.展开更多
Considering the widespread presence of the dithiocarbamate skeleton in pharmaceuticals and bioactive molecules,the development of novel and convenient methods for the synthesis of these useful sulfur-containing compou...Considering the widespread presence of the dithiocarbamate skeleton in pharmaceuticals and bioactive molecules,the development of novel and convenient methods for the synthesis of these useful sulfur-containing compounds is of significant interest.Traditionally,S-aryl dithiocarbamates are constructed through the reaction of amines with thiophenols and thiophosgene[1].Recently,transition-metal-catalyzed Ullmann-type coupling between aryl boronic acids or iodoarenes with tetraalkylthiuram disulfides or sodium dialkyldithiocarbamates has been reported[2].展开更多
基金Project supported by the National Key Research and Development Program of China(No.2022YFA1503200)the National Natural Science Foundation of China(Nos.22371149,22188101)+1 种基金the Fundamental Research Funds for the Central Universities(No.63223015)the Frontiers Science Center for New Organic Matter,Nankai University(No.63181206)。
基金the National Natural Science Foundation of China （No. 20343002, 20433030） from PetroChina are gratefully acknowledged.
文摘The Pd-promoted Ga/HZSM-5 catalyst was prepared by impregnation method and its catalytic activity for non-oxidative aromatization of C1 to C3 hydrocarbons was assessed using a microreactor-GC system operated with temperature at 823 K and space velocity at 410 h-1. The catalyst is more catalytically active for methane conversion than Ga/HZSM-5. The mass spectroscopy analyses confirmed that 13CH4 was converted to aromatic products.
文摘Considering the widespread presence of the dithiocarbamate skeleton in pharmaceuticals and bioactive molecules,the development of novel and convenient methods for the synthesis of these useful sulfur-containing compounds is of significant interest.Traditionally,S-aryl dithiocarbamates are constructed through the reaction of amines with thiophenols and thiophosgene[1].Recently,transition-metal-catalyzed Ullmann-type coupling between aryl boronic acids or iodoarenes with tetraalkylthiuram disulfides or sodium dialkyldithiocarbamates has been reported[2].
