通过使H 2 WO 4反应,制备了一种新型的与聚合物结合的[W(O)2(O 2)(CN)2 ] –PAN [PAN =聚(丙烯腈)](PANW)类型的过氧钨酸盐(VI)催化剂。含30%H 2 O 2和大分子配体PAN,pH 5.0。通过元素分析,SEM,EDX,TGA和光谱研究(FTIR和13 C NMR)对化合物进行表征。在非均相催化剂PANW的存在下,使用H 2 O 2作为氧化剂,可以将各种硫化物和二苯并噻吩(DBT)干净地转化为相应的亚砜或砜。,通过反应条件的多种变化。反应在温和的条件下进行,以提供具有令人印象深刻的周转频率(TOF)的最终产物。该催化剂对具有其他易氧化官能团的取代硫化物的硫基表现出完全的化学选择性。催化剂的易于再生和可重复使用性至少达到七个催化循环,具有恒定的活性和选择性是催化剂的重要属性。
Merrifield resin supported peroxomolybdenum(vi) compounds: recoverable heterogeneous catalysts for the efficient, selective and mild oxidation of organic sulfides with H2O2
作者:Jeena Jyoti Boruah、Siva Prasad Das、Seshadri Reddy Ankireddy、Sandhya Rani Gogoi、Nashreen S. Islam
DOI:10.1039/c3gc40304a
日期:——
amino acid functionalized Merrifield resin, which exhibit excellent activity, stability and selectivity for the oxidation of thioethers and dibenzothiophene (DBT) to the corresponding sulfoxides or sulfones by H2O2 at ambient temperature. The synthetic protocols are high-yielding, halogen-free, environmentallyclean and safe, and operationally simple. The catalysts, [MoO2(O2)(L)2]2−-MR [L = valine (MRVMo)
作者:Alex S. Deeming、Claire J. Russell、Alan J. Hennessy、Michael C. Willis
DOI:10.1021/ol403122a
日期:2014.1.3
The addition of Grignardreagents or organolithiumreagents to the SO2-surrogate DABSO generates a diverse set of metal sulfinates, suitable for direct conversion to sulfone products. The metal sulfinates can be trapped in situ with a wide range of C-electrophiles, including alkyl, allyl, and benzyl halides, epoxides, and (hetero)aryliodoniums.
It is an object of the present invention to provide an electrolytic solution having high oxidation decomposition potential, where dissolution and deposition of magnesium proceed repeatedly and stably, using a non-nucleophilic alkoxide-type magnesium salt.
The present invention relates to
(1) an electrolytic solution for a magnesium battery comprising a mixture of a compound represented by the following general formula (I), a Lewis acid and a solvent:
(2) an electrochemical device comprising the electrolytic solution, a positive electrode and a negative electrode, and
(3) a compound represented by the following general formula (I′):
It is an object of the present invention to provide an aprotic polar solvent mainly useful as a solvent for an electrochemical device, and having a comparatively low melting point and excellent thermal stability.
The present invention is a sulfone compound represented by the following formula (1),
wherein, in the formula (1), R1 and R2 each represent a C3-C6 alkyl group, and R1 and R2 are different.
TRICYCLIC HETEROCYCLIC COMPOUNDS, COMPOSITIONS AND METHODS OF USE THEREOF
申请人:Babu Srinivasan
公开号:US20110201593A1
公开(公告)日:2011-08-18
The invention provides novel compounds of formula I having the general formula:
wherein R
1
, R
2
, R
3
, X and Y are as described herein. Accordingly, the compounds may be provided in pharmaceutically acceptable compositions and used for the treatment of immunological or hyperproliferative disorders.