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Hive BB  Methods
Discourse  Sodium
Palladium Chloride
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| Author | Topic: Sodium Palladium Chloride |
| Getafix Member |
 posted 10-26-98 07:36 AM 
I think this has been asked before but i can't find the topic. Can Sodium Palladium Chloride be used instead pf Palladium Chloride in the Benzoquinone/Wacker? Somebody i know received some from the Formulary after ordering PdCl2. It looks pretty much the same. -Getafix |
| boybee Member |
posted 10-26-98 08:54 AM
DON'T DO IT! Lets just say that I over heard several grad school students speaking on this subject, that even after they scalled up the Na2PdCL4 so that there was the same amount of Pd in solution... IE - 1.8g PdCl2 = 2.8g NaPdCl4 = same amount of Pd ..... The reaction yielded ~40% ketone (by mole) when the student clearly expected +75% conversion. The student was noticably pissed at the outcome, because the only variable that was changed between 3 previuosly successful attampts and this run, was the SodiumPdCl .... Now having a little salt in the soultion is prolly the culprit... Notice that the only CATION in solution should be the Pd ... Having the Na+ in there to could possibly impede the reaction, due to Na+ 's greater charge density ..... HUMMMMMMMM. -bb |
| boybee Member |
posted 10-26-98 08:54 AM
DON'T DO IT! Lets just say that I over heard several grad school students speaking on this subject, that even after they scalled up the Na2PdCL4 so that there was the same amount of Pd in solution... IE - 1.8g PdCl2 = 2.8g NaPdCl4 = same amount of Pd ..... The reaction yielded ~40% ketone (by mole) when the student clearly expected +75% conversion. The student was noticably pissed at the outcome, because the only variable that was changed between 3 previuosly successful attampts and this run, was the SodiumPdCl .... Now having a little salt in the soultion is prolly the culprit... Notice that the only CATION in solution should be the Pd ... Having the Na+ in there to could possibly impede the reaction, due to Na+ 's greater charge density ..... HUMMMMMMMM. -bb |
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