Re: ORGLIST: Re: deprotection of amine

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From: Mr. (Dr.) Hardik M. Thakar (hardikthakar$##$rediffmail.com)
Date: Sat Oct 15 2005 - 03:24:39 EDT

  Dear All, I got my desired product. Please See The attached file for Deprotection of amine. Sincerely, Hardik On Sat, 15 Oct 2005 Krupa Shukla wrote : > >hi > >u can try 40% KOH/ water in about 1:1 ratio with >refluxing conditions. (note that amine solubility in >water remains quite high. so several extractiions may >be required) > >krupa > > > > >--- everybody-request$##$orglist.net wrote: > > > Send Everybody mailing list submissions to > > everybody$##$orglist.net > > > > To subscribe or unsubscribe via the World Wide Web, > > visit > > http://two.pairlist.net/mailman/listinfo/everybody > > or, via email, send a message with subject or body > > 'help' to > > everybody-request$##$orglist.net > > > > You can reach the person managing the list at > > everybody-owner$##$orglist.net > > > > When replying, please edit your Subject line so it > > is more specific > > than "Re: Contents of Everybody digest..." > > > > > > Today's Topics: > > > > 1. help regarding deprotection of Amine group > > (Mr. (Dr.) Hardik M. Thakar) > > 2. Re: Diol protection of Triol such as Glycerol > > or TMP with > > Ketone (Mr. (Dr.) Hardik M. Thakar) > > 3. RE: help regarding deprotection of Amine > > group (will jones) > > > > > > >---------------------------------------------------------------------- > > > > Message: 1 > > Date: 13 Oct 2005 05:52:04 -0000 > > From: "Mr. (Dr.) Hardik M. Thakar" > > <hardikthakar$##$rediffmail.com> > > Subject: ORGLIST: help regarding deprotection of > > Amine group > > To: everybody$##$orglist.net > > Message-ID: > > <20051013055204.392.qmail$##$webmail53.rediffmail.com> > > Content-Type: text/plain; charset="iso-8859-1" > > > > > > Dear All, > > > > I protected my amine group with ethyl carbamate > > (NHCOOEt) some body help me to deprotect it. > > > > Sincerely, > > > > Hardik Thakar > > > > Thakar Hardik M. > > Ph.D. Student, > > B V Patel PERD Centre, > > S G Road, > > Thaltej, > > Ahmedabad-380054, > > India. > > Mob. No. :-+91-9825877320 > > Fax. +91-79-27450449 > > -------------- next part -------------- > > An HTML attachment was scrubbed... > > URL: > > >http://two.pairlist.net/pipermail/everybody/attachments/20051013/044d943e/attachment-0001.html > > > > ------------------------------ > > > > Message: 2 > > Date: 14 Oct 2005 03:26:18 -0000 > > From: "Mr. (Dr.) Hardik M. Thakar" > > <hardikthakar$##$rediffmail.com> > > Subject: Re: ORGLIST: Diol protection of Triol such > > as Glycerol or TMP > > with Ketone > > To: "William Chien" <billychien$##$yahoo.com> > > Cc: everybody$##$orglist.net > > Message-ID: > > <20051014032618.11717.qmail$##$webmail7.rediffmail.com> > > Content-Type: text/plain; charset="iso-8859-1" > > > > > > please try p-toluene sulphonic acid in amount of > > 1:0.2 mol > > > > Sincerely, > > Hardik > > > > On Thu, 13 Oct 2005 William Chien wrote : > > >Several years ago, I was trying to make a diol (of > > >Trimethylolpropane)protecting group by using > > dimethyl > > >ketone and found the resulting material wasn't very > > >stable. > > > > > >Recently I found an article regarding a similar > > >reaction (Glycerol with Ketone and acidic > > catalyst). > > > > > >I am looking for the type of catalyst suitable for > > >this reaction and the reaction condition to > > stabilise > > >the resulting compound. > > > > > >Thanks and best regards > > > > > >William > > > > > > > > > > > >__________________________________ > > >Yahoo! Music Unlimited > > >Access over 1 million songs. Try it free. > > >http://music.yahoo.com/unlimited/ > > >_______________________________________________ > > >ORGLIST - Organic Chemistry Mailing List > > >Website / Archive / FAQ: http://www.orglist.net > > >To post a message (TO EVERYBODY) send to > > everybody$##$orglist.net > > >To unsubscribe, send to > > everybody-request$##$orglist.net the message: > > unsubscribe your_orglist_password your_address > > -------------- next part -------------- > > An HTML attachment was scrubbed... > > URL: > > >http://two.pairlist.net/pipermail/everybody/attachments/20051014/3507e0db/attachment-0001.html > > > > ------------------------------ > > > > Message: 3 > > Date: Fri, 14 Oct 2005 08:59:49 +0000 > > From: "will jones" <willjones46$##$hotmail.com> > > Subject: RE: ORGLIST: help regarding deprotection of > > Amine group > > To: hardikthakar$##$rediffmail.com, > > everybody$##$orglist.net > > Message-ID: > > <BAY102-F18FAF54C8525B9C655FA5BAE7D0$##$phx.gbl> > > Content-Type: text/plain; format=flowed > > > > Have you tried TMSI/base hydrolysis? > > > > If that doesnt work with your system, pick an amine > > protecting group that > > is!! > > > > A decent quick overview found here. > > > > >http://cook.chem.ndsu.nodak.edu/files/worms/050223-worms-grc-nprot.pdf > > > > Will > > > > > > >From: "Mr. (Dr.) Hardik M. Thakar" > > <hardikthakar$##$rediffmail.com> > > >Reply-To: "Mr. (Dr.) Hardik M. Thakar" > > <hardikthakar$##$rediffmail.com> > > >To: everybody$##$orglist.net > > >Subject: ORGLIST: help regarding deprotection of > > Amine group > > >Date: 13 Oct 2005 05:52:04 -0000 > > > > > > > > >Dear All, > > > > > >I protected my amine group with ethyl carbamate > > (NHCOOEt) some body help me > > >to deprotect it. > > > > > >Sincerely, > > > > > >Hardik Thakar > > > > > >Thakar Hardik M. > > >Ph.D. Student, > > >B V Patel PERD Centre, > > >S G Road, > > >Thaltej, > > >Ahmedabad-380054, > > >India. > > >Mob. No. :-+91-9825877320 > > >Fax. +91-79-27450449 > > > > > > >_______________________________________________ > > >ORGLIST - Organic Chemistry Mailing List > > >Website / Archive / FAQ: http://www.orglist.net > > >To post a message (TO EVERYBODY) send to > > everybody$##$orglist.net > > >To unsubscribe, send to > > everybody-request$##$orglist.net the message: > > >unsubscribe your_orglist_password your_address > > > > > > > > > > ------------------------------ > > > > _______________________________________________ > > ORGLIST - Organic Chemistry Mailing List > > Website / Archive / FAQ: http://www.orglist.net > > >=== message truncated === > > > > >__________________________________ >Yahoo! Music Unlimited >Access over 1 million songs. Try it free. >http://music.yahoo.com/unlimited/ >_______________________________________________ >ORGLIST - Organic Chemistry Mailing List >Website / Archive / FAQ: http://www.orglist.net >To post a message (TO EVERYBODY) send to everybody$##$orglist.net >To unsubscribe, send to everybody-request$##$orglist.net the message: unsubscribe your_orglist_password your_address



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