Author Topic: Chinese Microwave red. of Ketones w/ NaBH4  (Read 1720 times)

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ClearLight

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Chinese Microwave red. of Ketones w/ NaBH4
« on: November 13, 2002, 12:12:00 PM »
The chinese use a household oven, here is the link to the article, perhaps some one can figure out how to capture it for Rhod's page..

http://nr.stic.gov.tw/ejournal/ChiChemSociety/1999/EJ52-1999-509.tif



  I believe that the large excess of NaBH4 is because they keep trying to do it on a substrate without any liquid, ie: dry conditions... it would probablly work better on a substrate in a liquid suspension...



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Rhodium

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NaBH4 microwave.
« Reply #1 on: November 13, 2002, 12:46:00 PM »
It is available in PDF from the homepage of J. Chin. Chem. Soc. too.

http://www.sinica.edu.tw/~ccswww/zj-OR-1999-P509.pdf


terbium

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Microwave chemistry is mostly a gimmick, IMHO.
« Reply #2 on: November 13, 2002, 08:13:00 PM »
it would probablly work better on a substrate in a liquid suspension...
And it would probably work even better in methanol at room temperature.


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ClearLight

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PDF
« Reply #3 on: November 14, 2002, 10:37:00 AM »
Thx! I couldn't get that stupid quicktime plugin to give me more that one page...


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SPISSHAK

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You know there was n article I read where they
« Reply #4 on: November 16, 2002, 05:31:00 PM »
doing similar reactions (reductive aminations of ketones) using this system on clay, or zeolit supports in a microwave.
Anyway the chemist would place a bowl filled with dry ice/alcohol slush on top of the beaker while the mix was being microwaves when dealing more volitile amines to recondense them.