Recent content by nitalozano

Thank you very much for all the tips, chemisttree. Finallly I got the desired product distilating EtOH for only one hour and filtrating the solid that appeared after cooling the solution. Still the first yellow, then orange that turned to red colour to finish as black colour in the solution...

No, I didn't. I reduced the oxalamide and after reduction I added the HCl to form the salt. It's in the procedure...

I used 37% HCl solution. As I have the hydrocloride formed previously I decided to continue using the same acid. This has been the procedure followed step by step: To a flask charged with N-mesityl-N’-cyclohexyl-oxalamide (3.0 g, 10.4 mmol), was added BH3.THF (1 M in THF, 63 mL, 6 equiv). The...

Posts: 1 Re: Grubbs olefin metathesis Hi! I'm working on synthesis of assimetric imidazolium chlorides but I'm having problems in the last step. I'm following exactly the steps in the general procedure of Waltman and Grubbs (Organometallics, 23, 2004, 3105). I'm trying to synthesize the...

Hi! I'm working on synthesis of assimetric imidazolium chlorides but I'm having problems in the last step. I'm following exactly the steps in the general procedure of Waltman and Grubbs (Organometallics, 23, 2004, 3105). I'm trying to synthesize the imidazolium salts combining mesityl with...