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 20=
05 Krupa Shukla wrote : > >hi > >u can try 40% KOH/ water in about =
1:1 ratio with >refluxing conditions. (note that amine solubility in >w=
ater remains quite high. so several extractiions may >be required) > =
>krupa > > > > >--- everybody-request$##$orglist.net wrote: > > =
> Send Everybody mailing list submissions to > > everybody$##$orglist.net=

t > > http://two.pairlist.net/mailman/listinfo/everybody > > or, via e=
mail, 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 edi=
t your Subject line so it > > is more specific > > than "Re: Contents o=
f 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 > > F=
rom: "Mr. (Dr.) Hardik M. Thakar" > > <hardikthakar$##$rediffmail.com> > >=
 Subject: ORGLIST: help regarding deprotection of > > Amine group > > T=
o: everybody$##$orglist.net > > Message-ID: > > <20051013055204.392.qmail@=
webmail53.rediffmail.com> > > Content-Type: text/plain; charset="iso-88=
59-1" > > > > > > Dear All, > > > > I protected my amine group wi=
th ethyl carbamate > > (NHCOOEt) some body help me to deprotect it. > >=

> > Ph.D. Student, > > B V Patel PERD Centre, > > S G Road, > > Thalt=
ej, > > Ahmedabad-380054, > > India. > > Mob. No. :-+91-9825877320 =
> > Fax. +91-79-27450449 > > -------------- next part -------------- > =
> An HTML attachment was scrubbed... > > URL: > > >http://two.pairlis=
t.net/pipermail/everybody/attachments/20051013/044d943e/attachment-0001.htm=
l > > > > ------------------------------ > > > > Message: 2 > > D=
ate: 14 Oct 2005 03:26:18 -0000 > > From: "Mr. (Dr.) Hardik M. Thakar" =
> > <hardikthakar$##$rediffmail.com> > > Subject: Re: ORGLIST: Diol protecti=
on of Triol such > > as Glycerol or TMP > > with Ketone > > To: "Wil=
liam Chien" <billychien$##$yahoo.com> > > Cc: everybody$##$orglist.net > > Me=
ssage-ID: > > <20051014032618.11717.qmail$##$webmail7.rediffmail.com> > > =
Content-Type: text/plain; charset="iso-8859-1" > > > > > > please t=
ry p-toluene sulphonic acid in amount of > > 1:0.2 mol > > > > Sincer=
ely, > > Hardik > > > > On Thu, 13 Oct 2005 William Chien wrote : >=
> >Several years ago, I was trying to make a diol (of > > >Trimethylolpr=
opane)protecting group by using > > dimethyl > > >ketone and found the =
resulting material wasn't very > > >stable. > > > > > >Recently I fou=
nd an article regarding a similar > > >reaction (Glycerol with Ketone and=
 acidic > > catalyst). > > > > > >I am looking for the type of cataly=
st suitable for > > >this reaction and the reaction condition to > > st=
abilise > > >the resulting compound. > > > > > >Thanks and best regar=
ds > > > > > >William > > > > > > > > > > > >__________________=
________________ > > >Yahoo! Music Unlimited > > >Access over 1 million=
 songs. Try it free. > > >http://music.yahoo.com/unlimited/ > > >______=
_________________________________________ > > >ORGLIST - Organic Chemistr=
y 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:=

next part -------------- > > An HTML attachment was scrubbed... > > URL=
: > > >http://two.pairlist.net/pipermail/everybody/attachments/20051014=
/3507e0db/attachment-0001.html > > > > ------------------------------=

rom: "will jones" <willjones46$##$hotmail.com> > > Subject: RE: ORGLIST: hel=
p regarding deprotection of > > Amine group > > To: hardikthakar$##$rediff=
mail.com, > > everybody$##$orglist.net > > Message-ID: > > <BAY102-F18FA=
F54C8525B9C655FA5BAE7D0$##$phx.gbl> > > Content-Type: text/plain; format=f=
lowed > > > > 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" > > <hardi=
kthakar$##$rediffmail.com> > > >Reply-To: "Mr. (Dr.) Hardik M. Thakar" > >=
 <hardikthakar$##$rediffmail.com> > > >To: everybody$##$orglist.net > > >Subj=
ect: 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, > > > > > >Ha=
rdik Thakar > > > > > >Thakar Hardik M. > > >Ph.D. Student, > > >B =
V Patel PERD Centre, > > >S G Road, > > >Thaltej, > > >Ahmedabad-3800=
54, > > >India. > > >Mob. No. :-+91-9825877320 > > >Fax. +91-79-27450=
449 > > > > > > >_______________________________________________ > =
> >ORGLIST - Organic Chemistry Mailing List > > >Website / Archive / FAQ:=
 http://www.orglist.net > > >To post a message (TO EVERYBODY) send to >=
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uest$##$orglist.net the message: > > >unsubscribe your_orglist_password your=
_address > > > > > > > > > > ------------------------------ > >=

nic Chemistry Mailing List > > Website / Archive / FAQ: http://www.orglis=
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