but yields are lower, no?
Re: MeNO2 as a MeNH2 substitute? (topic split)
« Reply #20 on: August 14, 2009, 07:59:34 PM »
Topic: MeNO2 as a MeNH2 substitute? (topic split) (Read 297 times)
Enkidu
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heisenberg
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Re: MeNO2 as a MeNH2 substitute? (topic split)
« Reply #21 on: August 14, 2009, 08:40:44 PM »
but yields are lower, no?
I was under the impression that there's like a 30% drop using nitromethane as opposed to methylamine.
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Re: MeNO2 as a MeNH2 substitute? (topic split)
« Reply #22 on: August 14, 2009, 08:45:08 PM »
I think its more of an objective manner... Personaly I had 100% yeild loss when trying nitromethan 
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Re: MeNO2 as a MeNH2 substitute? (topic split)
« Reply #23 on: August 14, 2009, 09:45:01 PM »
IME yields have always been lower with MeNO2. IMO you can't go wrong just synthing MeNH2 elsewhere and just running a HgX2 amalgam with MeNH2 salt added.
I feel that MeNO2->MeNH2 effervesces out of the solution to such an extent that the yields drop considerably. The reduction heat helps push it.
I feel that MeNO2->MeNH2 effervesces out of the solution to such an extent that the yields drop considerably. The reduction heat helps push it.
ChesireCat
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Re: MeNO2 as a MeNH2 substitute? (topic split)
« Reply #24 on: August 14, 2009, 10:01:47 PM »
Quantitive yields are possible if one makes the methanolic solution of methylamine in advance and separately from the reduction.
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Douchermann
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Re: MeNO2 as a MeNH2 substitute? (topic split)
« Reply #25 on: August 15, 2009, 04:00:07 PM »
Correct chesire, which is why I started my thread on catalytic hydrogenation of nitromethane. Now where to get a hydrogen tank...