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malvaxman
(Hive Bee)
12-11-01 19:31
No 246699
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Making phenyl-2-nitropropene
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To 55 g (0.5mol) Benzaldehyde in a 500ml Flask were added 40 g (0.5mol) Nitroethane and 10ml Cyclohexylamine. All was refluxed for 6h on a water bath. The result were 2 layers. One orange layer at the bottom with phenyl-2-nitropropene and a clear layer at the top with cyclohexylamine and maybe a little bit (~1ml) of H20. 50ml of H2O were added and then sucked off with a pipette until the phenyl-2-nitro-propene crystallized (it crystallized when it came in touch with air in presence of 15ml H2O). I added 200ml 95% denaturated ethanol to the orange crystals. The color of the now needle-like crystals changed from orange to white-yellow. The crystals were filtered. Yield 65 g, 78% of theory.<br><br>----------------------------------------<wbr>--------<wbr>--------<wbr>-<br><br>What is the cyclohyxylamine good for, could one be without it, and is there any OTC source for it?<br><br>Thank you for your answer<img src="../forum/images/icons_lightgrey/smile.gif" alt="smile" title="Smile" heigth="15" width="15">
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PVnRT_NC8<br>
<i>(<span title="The user's title at the time of posting">FMAN</span>)</i><br>
<span title="Posting date">12-11-01 19:53</span><br>
<span title="Link to this post by using the markup [246705]">No 246705</span><br>
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<title>Re: Making phenyl-2-nitropropene
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Oil for french fries looks extreemly interesting as far as a higher boiling solvent goes and of course you could buy the extra hydrogenated variety? I dont know yet but i would susspect that the information is scewed, the relivant scienticium is um very redundant people discovering simple thigns and making them sound like you got to have a doctorate or something to get involved, you do too comunicate with any suffeciency but of course if you just want to do something yes a long post is in fact harder to scan....<br><br>I was thinking maybe you could do it alot easier and why not? If you goit speed and only a aspartyl group to disattach I would venture your search would be almost over and of course this would be very very easy<br><hr>Amethystium
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timsong<br>
<i>(<span title="The user's title at the time of posting">Hive Bee</span>)</i><br>
<span title="Posting date">12-11-01 19:59</span><br>
<span title="Link to this post by using the markup [246707]">No 246707</span><br>
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<b title="The subject of this post">Re: Making phenyl-2-nitropropene </b>
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????????????????????????????
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terbium<br>
<i>(<span title="The user's title at the time of posting">Old P2P Cook</span>)</i><br>
<span title="Posting date">12-11-01 21:31</span><br>
<span title="Link to this post by using the markup [246724]">No 246724</span><br>
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<b title="The subject of this post">Re: Making phenyl-2-nitropropene </b>
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<font color="blue">What is the cyclohyxylamine good for, could one be without it, </font color="blue"><br>It is the, basic, catalyst that makes the condensation happen. Some people use butylamine or other amines.<br><br><span title="Jump to this post"><a href="../DUMMY">Post 240019</a> <i>(BieneMaja: "probs w/ crystallisation after BA+Nitroethan cond.", Newbee Forum)</i></span>
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<font color="#ff0000">Osmium</font><br>
<i>(<span title="The user's title at the time of posting">Stoni's sexual toy</span>)</i><br>
<span title="Posting date">12-12-01 04:11</span><br>
<span title="Link to this post by using the markup [246773]">No 246773</span><br>
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<b title="The subject of this post">Re: Making phenyl-2-nitropropene </b>
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Shut up FMAN.
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