| 标题 |
 Nitration of toluene with 65% nitric acid over MoO3/SiO2 as catalyst 相关领域
化学工程
材料科学
相（物质）
有机化学
|
| 网址 |
求助人暂未提供
|
| DOI |
暂未提供，该求助的时间将会延长，查看原因？
|
| 其它 | (NH4)6Mo7O244H2O, 1.83 g, dissolved in 15 mL H2O2, was deposited on 8.5 g of 0.5-1.0-mm SiO2gel, dried 24 h at 110°C, and calcined 18 h at 550°C in air stream to yield 10 g 15% MoO3/SiO2 catalyst. This 10 g catalyzed nitration of 0.37 g C6H5CH3in 22 mL CCl4 with 1.85 g aq. 65% HNO3 for 2.5 h at room temp. The products were filtered, washed (NaHCO3, H2O), dried over MgSO4, and gas chromatographed. The C6H5CH3/HNO3ratios studied were 1:1-1:10; at 1:4, the yield was max. at 52.7% (vs. the 7% with no catalyst used); at 1:10, the yield was 32%, same as with no catalyst. As the MoO3 in the catalyst was increased (to 50 wt.%), the yield fell. The 15% MoO3/SiO2 was best as catalyst. It was regioselective, favorable to the mononitro-derivatives and to the p-nitro product The para-to-ortho ratio was invariably ca. 0.7. |
| 求助人 | |
| 下载 | |
|
温馨提示：该文献已被科研通 学术中心 收录，前往查看
科研通『学术中心』是文献索引库，收集文献的基本信息（如标题、摘要、期刊、作者、被引量等），不提供下载功能。如需下载文献全文，请通过文献求助获取。
|
浮游
你嵙这个期刊没买
GingerF
嘻嘻哈哈
mashibeo
ccm
pluto
VDC
YifanWang
遇上就这样吧
竹筏过海
soler
梅天豪
悲凉的冬天
无极微光
Criminology34
北地风情
兼听则明
Leonard
avalanche
GPTea
liao
小杭76
wy.he
皖公网安备34019202002308
