The reaction at the electrode of a voltaic cell (http://www.chemistryquestion.com/English/Questions/HighSchoolChemistry/3_VoltaCell.html)
(http://www.chemistryquestion.com/English/Questions/HighSchoolChemistry/3_VoltaCell.html)Oxidation of formic acid (http://www.chemistryquestion.com/English/Questions/HighSchoolChemistry/5_oxidation_formicacid.html)
(http://www.chemistryquestion.com/English/Questions/HighSchoolChemistry/5_oxidation_formicacid.html)Synlett 708 (1992) (https://www.thevespiary.org/rhodium/Rhodium/chemistry/oxime2amine.zn-cu.html)
(https://www.thevespiary.org/rhodium/Rhodium/chemistry/oxime2amine.zn-cu.html)http://jchemed.chem.wisc.edu/JCESoft/CCA/CCA3/MAIN/VOLTAGE/PAGE1.HTM (http://jchemed.chem.wisc.edu/JCESoft/CCA/CCA3/MAIN/VOLTAGE/PAGE1.HTM)
Post 108626 (missing)
(dormouse: "2C-H with Al/Hg , 35 % yields -sunlight", Novel Discourse)) with the method the german scientists used (Post 459028 (missing)
(Rhodium: "Nitrostyrenes to phenethylamines using Al/Hg", Novel Discourse)) and note that Sunlight used a temperature of 60-80 degrees due to problems with solubility, whereas the original procedure used a temperature of 20 degrees and a different substrate, with a better solubility maybe. No wonder the yield was unexpectedly low, eh? The idea of adding THF cosolvent to the mixture is, in my opinion, a good idea.(https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_imgs/djvu.gif)
(https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_imgs/djvu.gif)