113560-92-2Relevant academic research and scientific papers
Cathodic Synthesis of Dicyanodiphenyl Diselenide From Phenylselenobenzonitrile
Degrand, Chantal,Gautier, Christine,Kharroubi, Mohamed
, p. 6071 - 6078 (2007/10/02)
The catodic reduction of 2-, 3- and 4-(phenylseleno)benzonitrile has been carried out in N,N-dimethylformamide and acetonitrile, at mercury, Pt, and glassy carbon electrodes.The first reduction step is accompanied by C-Se bond breaking.In the presence of an acid (fluorene, phenol, Bu4NSO4H), cyanobenzeneselenolate anions are thus generated in high yields, together with a small amount of benzeneselenolate anions (about 85percent and 15percent yiels, respectively).The former anions can be oxidised either anodically or chemically by air in alkaline aqueous solutions, and so 2,2'-, 3,3'- and 4,4'-dicyanodiphenyldiselenide are isolated in 59percent, 70percent and 75percent yields, respectively.
ELECTROCHEMICAL SYNTHESIS OF SELENO AND TELLURO DERIVATIVES IN MeCN
Degrand, Chantal,Prest, Rita,Nour, Mohamed
, p. 201 - 210 (2007/10/02)
Large-scale electrolysis with concurrent sonication in MeCN allows for the synthesis of a large variety of seleno and telluro derivatives.Aliphatic chalcogenides REER or RER (E = Se, Te) can be prepared by reduction of E powder to E2(2-) or E(2-), followed by addition of an alkyl halide RX.Depending upon R, substitution can compete with homogeneous electron or H+ transfers.RE+ can be prepared by anodic oxidation of REER, and trapped by nucleophiles and olefins.The synthesis of aromatic chalcogenides ArEAr'can be carried out by electrochemically inducedSRN1 substitution.The yields are improved by redox catalysis.Under such conditions, the synthesis of PhEAr (Ar = NCC6H4, PhCOC6H4) proceeds in good yields.ArEEAr and ArEAr can be prepared by cathodic reduction of PhEAr.
