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Topic: SVM is a solvent, but what is it?  (Read 2230 times)

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Offline NO2

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SVM is a solvent, but what is it?
« on: June 08, 2014, 05:03:29 AM »
SVM is used in an organic extraction, but what is it.
here is the context:
http://www.google.com/patents/WO1998030537A1?cl=en
(S)-7N-benzyloxycarbonyl-2,7-diamino-5-thioheptanoic acid (5.3g) was treated with 45%HBr in acetic acid (23mL) for 1h. An intractable gum was formed and ether was added to the mixture to ensure complete precipitation of the product. The liquid was decanted off and the solids dissolved in hot SVM. This hot solution was treated with pyridine until a precipitate just persisted and the mixture allowed to cool to room temperature. The resulting precipitate was filtered off and recrystallised from SVM/water to yield the title compound as a white solid, 2.2g, mp 222°C(dec).

It's very difficult to find, because support vector machines (machine learning) covers it up in an internet search. I found something here:
http://books.google.at/books?id=SSlDWXXa0xQC&pg=PA315&lpg=PA315&dq=svm/water+chemistry&source=bl&ots=5R8qgYBjIJ&sig=tgZnH2Ed5xeK9nd5VaC3AoyyGSk&hl=en&sa=X&ei=XySUU87YIery7Aa8noDwAw&ved=0CCwQ6AEwAQ#v=snippet&q=svm&f=false

it can be made into a fiber as well.

 

« Last Edit: June 08, 2014, 05:31:20 AM by NO2 »

Offline NO2

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Re: SVM is a solvent, but what is it?
« Reply #1 on: June 08, 2014, 06:02:01 AM »
I think what is mean are sacrificial volume materials (SVM). Which materials fall in that category, I have yet do establish.

Offline NO2

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Re: SVM is a solvent, but what is it?
« Reply #2 on: June 08, 2014, 07:59:43 PM »
The above was nonsense of course. I've dicovered, after the ,most extensive web-search in the history of google, this here: SVM (ethanol plus 2% methanol)
found in this document: http://www.lens.org/lens/patent/WO_1994_026701_A1/fulltext

 ;D

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