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Just wanted to make sure that my understanding of SN2 preferred solvent is correct.
Aprotic so the nucleophile doesn't get protonated, and thus weakened.
Polar so the leaving group anion is stabilized by the solvent.
Answer Snippets (Read the full thread at studentdoctor):
And polar solvent is needed justYes, aprotic is used because protic solvent would make the reaction less effective by hydrogen another related reason (or the....
With nucleophile attacking will definitely slow down the reaction rate .
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Hi all,
Just wondering if 3-acetyl-2,5-dimethylfuran would make a good polar aprotic solvent?
I try to find reference for its use as solvents, but I can only seem to find its use as an intermediate compound.
Does it suggest that it is highly reactive?...
Started by HailoMan on
, 4 posts
by 3 people.
Answer Snippets (Read the full thread at chemicalforums):
Dimethylfuran would make a good polar aprotic solvent?
I try to find reference for its use as solvents a polar aprotic solvent that can be synthesised from renewable sources and furan groups seem like as high boiling....
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So i just had some friend come by with a couple non polar solvent would Toluene and Cyclohexane work for oil? is it worth it?
Started by satch31 on
, 8 posts
by 8 people.
Answer Snippets (Read the full thread at tokecity):
Getting.
Which is from what i hear, an ideal solvent in terms of product and lack of flammability.
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Ask your Facebook Friends
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In chromatography, what other solvent can you use except from water?
Started by Jessie on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at yahoo):
Methanol, isopronanol, acetonitrile, or even tetrahydrofuran the solvent you.
Organic solvent such as acetonitrile, chloroform, ethyl acetate, hexane, etc., will be used, and combinations thereof.
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Hi everyone.
I have recently made an unknown sample that I isolated and purified. I am working on the structural elucidation, but something peculiar happens when I add solvent to the unknown.
The crystals are normally yellow (and an acetone solution is...
Started by asa029 on
, 4 posts
by 3 people.
Answer Snippets (Read the full thread at chemicalforums):
For fun examples see Nile Blue or Nile Red!), maybe you could try different solvents as well and see if there is a correlation between the solvent.
From green to colorless to yellow depending on the solvent.
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¿Por qué se dice que el agua es un solvente universal? ¿Es cierto eso?
Started by Agustin on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at yahoo):
Las moléculas de agua están unidas.
Sustancias disuelve, lo que tiene que ver con que es una molécula polar.
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Solvente migliore Quale sarebbe il solvente migliore tra H2O e CCl4, per ognuno dei seguenti composti? a)NH3, b)HCl,
c)I2.Giustificare la risposta.
Potete anche non rispondermi alla domanda e spiegarmi quali sono i criteri per capire quando si ha un solvente...
Started by fenice6 on
, 5 posts
by 2 people.
Answer Snippets (Read the full thread at studenti):
Moderatore forum di chimica e farmacia
"Si dee stimar meno indecente di rinunciar all'errore in grazia della verità, di quello che sostenere con petulanza e con fasto un qualche parere, solo... .
Distingui tra molecole polari e apolari e avrai la risposta.. .
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On Mon, 16 Feb 2009 00:59:58 +0100, "Theo Griep" <griep@planet.nl
I recently bought a polarizing condenser for my Orthoplan, but the
polarizing filter won't rotate. I applied some xylol into the gap where it
should rotate but the only effect was...
Started by Theo Griep on
, 5 posts
by 4 people.
Answer Snippets (Read the full thread at omgili):
Then....
:
If grease is the problem, then you need a non-polar solvent, not the polar
ones you're considering;gr...@planet.nl
Theo,
I would wrap the unit in Kim-wipes or something similar and use a
solvent death to be boring.
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On Fri, 28 Aug 2009 02:31:11 -0700 (PDT), enigma <enigma_067@yahoo.com
'Stress' is shrinking polar bears
By Victoria Gill
Science reporter, BBC News
Polar bears have shrunk over the last century, according to research.
Scientists compared bear...
Started by enigma on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at omgili):
Maybe polar bears are evolving to become.
:31 am, enigma <enigma_...@yahoo.com
Animals evolve.
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" Okay.
Before I start, it should be known this is an adaptation from THIS extraction method.
So, for starters, you'll need a considerable amount of Morning Glory of HBWR seeds. Less of the latter. They will need to be ground to a powder, I used a cheap...
Started by AmplifyEffortlessly on
, 6 posts
by 4 people.
Answer Snippets (Read the full thread at rollitup):
I could also just skip that non polar solvent step and rinse.
And i believe heat degrades LSA....
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