polyoxomolybdate–calix[4]arene hybrid 1 has been synthesized and applied as a heterogeneous catalyst in the sulfoxidation of thioethers to sulfoxides and to sulfones under strictly stoichiometric amounts of 30% H2O2 in CH3CN as the solvent. This study represents the first promising example of successful employment of calixarenes–polyoxometalate (POM) hybrid materials in the area of catalytic oxidations.
合成了一种容易获得的聚氧钼酸盐-杯[4]芳烃杂化物1,并作为非均相催化剂在严格化学计量的CH 3 CN中以30%H 2 O 2为溶剂将硫醚硫氧化为亚砜和砜。这项研究代表了在催化氧化领域成功使用杯芳烃-多金属氧酸盐(POM)杂化材料的第一个有希望的例子。
An Efficient Catalytic Procedure for the Selective Oxidation of Sulfides to Sulfoxides by Citric Acid/Al(NO<sub>3</sub>)<sub>3</sub>.9H<sub>2</sub>O/MBr Under Mild and Heterogeneous Conditions
作者:Arash Ghorbani-Choghamarani、Somaieh Rezaei
DOI:10.1002/jccs.200900036
日期:2009.4
A wide range of aliphatic or aromatic sulfides are selectively oxidized to the corresponding sulfoxides using Al(NO3)3.9H2O, citricacid and a catalytic amount of KBr or NaBr in the presence of wet SiO2 (50% w/w)in CH2Cl2 undermild and heterogeneousconditions in good to high yields.
The present disclosure is directed to modulators of SOS1 and their use in the treatment of disease. Also disclosed are pharmaceutical compositions comprising the same.
本公开涉及SOS1的调节剂及其在治疗疾病中的应用。还公开了包含相同成分的药物组合物。
Aluminium Nitrate/Silica Sulfuric Acid/Bromide Ion: As an Effective and Catalytic Oxidizing Media for the Selective Oxidation of Sulfides to Sulfoxides
Various types of sulfides are chemoselectively oxidized to the corresponding sulfoxides by treatment of Al(NO 3 ) 3 .9H 2 O, silicasulfuricacid and a catalytic amount of NaBr in the presence of wet SiO 2 (50% w/w) in CH 2 Cl 2 at room temperature. The catalyticoxidation procedure is very simple and the products are easily isolated in good yields.
1,2-Dipyridiniumditribromide-ethane (DPTBE) as a New Oxidizing Agent for the Chemoselective Oxidation of Sulfides to the Sulfoxides
作者:Arash Ghorbani-Choghamarani、Mohammad Ali Zolfigol、Tahereh Azadbakht
DOI:10.1080/10426500902849565
日期:2010.2.23
A wide range of aliphatic or aromatic sulfides is selectively oxidized to the corresponding sulfoxides using 1,2-dipyridiniumditribromide-ethane (DPTBE) in a mixture of CH2Cl2/H2O under heterogeneous conditions in moderate to high yields. Supplemental materials are available for this article. Go to the publisher's online edition of Phosphorus, Sulfur, and Silicon and the Related Elements to view the