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| Laboratory Tips Safety proceedures, test reagents, drilling rubber stoppers, bending glass tubes, etc. Contributed to by chemists. |
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#1
 2003-12-18, 23:36
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KamikazePimp 
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wet synthesis question
SWIM was told that piperidine can be substituted w/ pyrrolidine, which is found in a certain paintbrush cleaner.
How would SWIM extract the solution so that he is only left w/ pyrrolidine as not to include impurities(toxins) into the final batch?
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#2
 2003-12-19, 05:35
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KamikazePimp 
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Re: wet synthesis question
bump son
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#3
 2003-12-19, 21:57
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KamikazePimp 
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Re: wet synthesis question
B-U-muthafuckin M-P!!!!11
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#4
 2003-12-20, 00:29
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KamikazePimp 
Regular
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Re: wet synthesis question
bump motherfucks!!
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#5
 2003-12-20, 07:31
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ArnoldNailedYourMom 
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Re: wet synthesis question
okay, i can probably help you if in know what kind of synthesis is going on. i don't know anything about making wet, but i am about to have a degree in chemistry. if i can understand exactly what your trying to do i can let you know if it can be replaced, or at least make an attempt to give helpful feedback. i'm only doing this because i noticed 4 bumps and no help (i'm not experienced with actual manufacturing).
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#6
 2003-12-20, 07:32
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ArnoldNailedYourMom 
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Re: wet synthesis question
basically give me the reaction.
x + y = a + b
and i'll figure out if it can be substituted
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#7
 2003-12-21, 02:51
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KamikazePimp 
Regular
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Re: wet synthesis question
piperidine + cyclohexanone w/ KCN(nitrile intermediate) = (pyrrolidine + x) + cyclohexanone reacted using KCN nitrile intermediate
Both (should) become PCC after an 18 hr reaction.
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#8
 2003-12-21, 04:14
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ArnoldNailedYourMom 
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Re: wet synthesis question
quote:Originally posted by KamikazePimp:
piperidine + cyclohexanone w/ KCN(nitrile intermediate) = (pyrrolidine + x) + cyclohexanone reacted using KCN nitrile intermediate
Both (should) become PCC after an 18 hr reaction.
from what i understand (or think i understand), you want to react pyrrolidine with cyclohexanone instead of piperidine to get PCC. as far as i understand if you react pyrrolidine you will not get PCC. pyrrolidine in a 5 carbon ring and piperidine is a 6 carbon ring (the latter is what you need for PCC). unless somehow you plan to convert the pyrrolidine to piperdine by adding a carbon to the ring you will be disappointed with the results.
also, i am just curious how you plan to get the benzene ring into the pcc structure (the next reaction).
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#9
 2003-12-21, 04:16
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ArnoldNailedYourMom 
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Re: wet synthesis question
let me know if i misunderstood anything, and i apologize if i have stated anything you already know.
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