•  
  •  
 

Corresponding Author

Deng ping GU

Abstract

We described a novel cathodic indirect epoxidation system in which O 2 was first cathodically reduced to H 2O 2. Then VO(acac) 2 was oxidized by H 2O 2 homogeneously to VO(acac) 2OOH which was used to epoxidize some olefine such as maleic, fumaric and crotonic acids. Many affecting factors on the current efficiency were optimized. The research will contribute to the developments of organic electrosynthesis.

Keywords

Cathodic indirect epoxidation, Olefins

Publication Date

2000-08-28

Online Available Date

2000-08-28

Revised Date

2000-08-28

Received Date

2000-08-28

References

[1 ] GuDeng ping ,WangRui zhi,ZhangXue ying .Cathodicindirectoxidationoforganiccompounds(Ⅰ )———electrosynthesisofDMSO2 [J].Electrochemistry (inChinese) ,inpress .

[2 ] ZhangHong kun ,GuDeng ping .Thetechniquesofthepairedelectrosynthesis[J].Electrochemistry (inChi nese) ,1 999,5 (3) :30 4~ 390 .

[3] TalsiEP ,ChinakovVD ,BabenkeVP ,etal.Roleofvanadiumalkylperoxocomplexesinepoxidationofcy clohexeneandoxidationofcyclohexanebyorganichydroperoxidesinthepresenceofbis(acetylacetonato)vanadyl[J].J .Mol.Catal.,1 993,81 :2 35~ 2 5 4.

[4 ] MihelichED .Vanadium Catatyzedepoxidations .Ⅰ .anewselectivitypatternforacyclicalcohols[J].Tera hedronLett.,1 979,49:472 9~ 4732 .

[5 ] ShengMN ,ZajacekJG .Hydroperoxideoxidationscatalyzedbymetals .Ⅲ .epoxidationofdienesandolefinswithfunctionalgroups[J].J .Org .Chem .,1 970 ,35 (6 ) :1 839~ 1 843.

[6 ] KitamuraM ,YamashitaK ,ImaiH .Studiesonelectrodeprocessesofoxovanadium (Ⅳ ) .Ⅲ .solventeffectonreductionpotetialofvanadylacetylacetonate[J].Chem .Lett .,1 975 ,1 0 71~ 1 0 74.

[7] Kamaluddin ,SinghHV .Resin supportedvanadium (Ⅳ ) catalysedepoxidationofmaleic ,fumaricandcro tonicacidswithhydrogenperoxide[J].J .Catal.,1 992 ,1 37:5 1 0~ 5 1 2 .

[8] FuriaFD ,ModenaRecl.G .Metalcatalysisinoxidationbyperoxidespart .5 .onthemechanismofvanadium(Ⅴ )catalysedoxidationbyhydrogenperoxide[J].Trav .Chim .Paysbas ,1 979,98:1 81~ 1 87.

[9] LiWei,TsutomaNonaka .Developmentofcathodicoxiditionsystemanditsapplicationtopairedelectrosyn thesisofsulfonesandnitrones[J].J .Electrochem .Soc .,1 999,1 46 (2 ) ,5 92~ 5 97.

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.