... are those using new mediators which are not easily preparable by the usual chemical methods ... Br - H Br CgH^S-CH, OCH x \ Vl?8-^ + Br' base ~}F t VlT^11 ... 2. Electroorganic chemistry in organic synthesis 849 REFERENCES AND NOTES 'L. Eberson and K. Nyberg, Tetrahedron ...