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Sulfanilic acid catalyzed solvent-free synthesis of 1,5-benzodiazepine derivatives
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作者 Jaiprakash N.Sangshetti Nagnnath D.Kokare Devanand B.Shinde 《Chinese Chemical Letters》 SCIE CAS CSCD 2007年第11期1305-1308,共4页
Sulfanilic acid has been found to be an efficient catalyst for the synthesis of 1,5-benzodiazepines from o-phenylenediamine and ketones. This method is simple, effective and environmentally friendly and gives better y... Sulfanilic acid has been found to be an efficient catalyst for the synthesis of 1,5-benzodiazepines from o-phenylenediamine and ketones. This method is simple, effective and environmentally friendly and gives better yields. 展开更多
关键词 1 5-Benzodiazepines sulfanilic acid catalyst Solvent free condition
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Surface Grafting of Phenolic Resole onto LDPE Films
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作者 Jue CHENG Yi ZHENG Wan Tai YANG 《Chinese Chemical Letters》 SCIE CAS CSCD 2006年第8期1133-1136,共4页
Low density polyethylene film surface-grafted phenolic resole was prepared by a sequential processes. Firstly, acrylic acid was grafted to the surface of low density polyethylene by photo-grafting. Secondly, the carbo... Low density polyethylene film surface-grafted phenolic resole was prepared by a sequential processes. Firstly, acrylic acid was grafted to the surface of low density polyethylene by photo-grafting. Secondly, the carboxylic groups in poly(acrylic acid) chains were transferred to sulfonic groups by the reaction of carboxylic groups with sulfanilic acid. Finally, a thin layer of phenolic resole was cured onto the surface of low density polyethylene. The grafting process was characterized by FTIR-ATR and gravimetric analysis. A possible model was proposed to interpret the experimental results. 展开更多
关键词 Surface grafting low density polyethylene film sulfanilic acid phenolic resole.
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Determination of Trace Mercury by Catalytic Solid Substrate-room Temperature Phosphorimetry
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作者 Jia Ming LIU Yun Xiong WU +6 位作者 Shao Xian LIN Fei Ming LI Xiu Mei SHI Zhong Bin SHI Guo Hui ZHU Zhi Ming LI Xiao Mei HUANG 《Chinese Chemical Letters》 SCIE CAS CSCD 2006年第12期1582-1584,共3页
A new highly sensitive method (detection limit: 4.1 ag spofx, sample volume: 0.4 gL spot^·l) for the determination of trace Hg2^2+ by catalytic solid substrate-room temperature phosphorimetry has been establ... A new highly sensitive method (detection limit: 4.1 ag spofx, sample volume: 0.4 gL spot^·l) for the determination of trace Hg2^2+ by catalytic solid substrate-room temperature phosphorimetry has been established in this paper. This method has been successfully applied to determine trace Hg6^2+ in water. 展开更多
关键词 Hg^2+ Α-NAPHTHYLAMINE sulfanilic acid catalytic solid substrate-room temperature phosphorimetry.
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