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Rhodium
(Chief Bee) 11-12-02 15:31 No 379066 |
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Bromosafrole -> MDP2P | Bookmark | |||||
This article on how to prepare MDP2P from Bromosafrole was posted by lugh a long time ago, but nobody seemed to grasp its significance. The yield is up to 90%, and the needed reagent is 2-nitropropane, which is not watched and also dirt cheap ($15/kg). ![]() ../rhodium /halide. |
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hest (Hive Adickt) 11-12-02 15:51 No 379075 |
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2-nitro-propen | Bookmark | |||||
But bee aware that 2-nitropropan is extremly carcinogenic. |
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Rhodium (Chief Bee) 11-12-02 16:07 No 379078 |
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2-nitropropene should neither be an impurity in ... | Bookmark | |||||
2-nitropropene should neither be an impurity in the starting material or a product in the reaction. Do you have a different opinion? |
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Barium (Hive Bee) 11-12-02 16:07 No 379081 |
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But Rhodium is talking about 2-nitroprop a ne, ... | Bookmark | |||||
But Rhodium is talking about 2-nitropropane, not 2-nitropropene. Catalytic hydrogenation freak |
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hest (Hive Adickt) 11-12-02 17:30 No 379103 |
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nitropropan | Bookmark | |||||
It was just ment as a general warning. Nito- methane, ethane and propane is almost non toxic, but 2-nitropropan is for some reason werry caracinogenic. So you have to doo the condensation with the aldehyde with much more care than usual, that's all. Nice synth by the way. |
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