https://www.thevespiary.org/rhodium/Rhodium/chemistry/grignardimine.html (https://www.thevespiary.org/rhodium/Rhodium/chemistry/grignardimine.html)
Rhodium describes in one sentence "...After the reaction has subsided it will be refluxed for 15-30 min. on non-explosion proof hotplate. ..." But how hot have the hotplate to be????