About
Community
Bad Ideas
Drugs
Ego
Erotica
Fringe
Society
Technology
register | bbs | search | rss | faq | about
meet up | add to del.icio.us | digg it
Go Back   Community > Science > Laboratory Tips
FAQ Members List Calendar Search Today's Posts Mark Forums Read

Laboratory Tips Safety proceedures, test reagents, drilling rubber stoppers, bending glass tubes, etc. Contributed to by chemists.

Reply
 
Thread Tools Display Modes
 #1 
Old 2003-12-18, 23:36
KamikazePimp KamikazePimp is offline
Regular
 
Default 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?
 #2 
Old 2003-12-19, 05:35
KamikazePimp KamikazePimp is offline
Regular
 
Default Re: wet synthesis question

bump son
 #3 
Old 2003-12-19, 21:57
KamikazePimp KamikazePimp is offline
Regular
 
Default Re: wet synthesis question

B-U-muthafuckin M-P!!!!11
 #4 
Old 2003-12-20, 00:29
KamikazePimp KamikazePimp is offline
Regular
 
Default Re: wet synthesis question

bump motherfucks!!
 #5 
Old 2003-12-20, 07:31
ArnoldNailedYourMom ArnoldNailedYourMom is offline
Regular
 
Default 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).
 #6 
Old 2003-12-20, 07:32
ArnoldNailedYourMom ArnoldNailedYourMom is offline
Regular
 
Default Re: wet synthesis question

basically give me the reaction.

x + y = a + b

and i'll figure out if it can be substituted
 #7 
Old 2003-12-21, 02:51
KamikazePimp KamikazePimp is offline
Regular
 
Default 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.
 #8 
Old 2003-12-21, 04:14
ArnoldNailedYourMom ArnoldNailedYourMom is offline
Regular
 
Default 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).
 #9 
Old 2003-12-21, 04:16
ArnoldNailedYourMom ArnoldNailedYourMom is offline
Regular
 
Default Re: wet synthesis question

let me know if i misunderstood anything, and i apologize if i have stated anything you already know.
 
To the best of our knowledge, the text on this page may be freely reproduced and distributed.
 

totse.com certificate signatures
 
 
About | Community | Bad Ideas | Drugs | Ego | Erotica | Fringe | Society | Technology
Hot Topics