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Messages 1568 - 1597 of 3942   Oldest  |  < Older  |  Newer >  |  Newest
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1568
can someone please tell me what is tert butane???...
amitaf1121
Online Now Send Email
May 1, 2005
11:34 pm
1569
Tert-butane is a carbon with 3 methyl groups and 1 Hydrogen attached. Also if you have trouble with the structures of organic molucules you can go to...
joecsg
Offline
May 1, 2005
11:55 pm
1570
Thanks alot. I want to know what happens when Br2 and light is added to tert butane. What should be expected??? someone please help!!!...
amitaf1121
Online Now Send Email
May 2, 2005
2:38 pm
1571
hi frernz is anyone from chennai? i want to enterr into a job atchennai. plz reply soon smitha __________________________________________________ Do You...
smitha antony
orgsmi
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May 3, 2005
5:19 am
1572
in the presence of light Br2 attack the butane molecule at the second carbon possion giving 2.2dibromo propane ... Thanks alot. I want to know what happens...
GUSHA
liziwe2001
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May 3, 2005
1:19 pm
1573
plz explain to me how ADOL SYNTHESIS REALLY OCCUR ... hi frenz i'm a new member here. i've completed M. Phil. smitha Yahoo! Groups Links To visit your group on...
GUSHA
liziwe2001
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May 3, 2005
1:24 pm
1574
talk to me.what seem to be the problem? ... HI PILAR I MAY BE BORED TO YOU OR SOMETHING,BUT PLEASE DON'T GET ANGRY.AM ONLY A STUDENMT WHO WOULD LOVE TO...
GUSHA
liziwe2001
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May 3, 2005
1:57 pm
1575
High PURU H R U???? ... will you provide a detail sketch of the transformation you want to do ? Please draw the structures. Dr dewang ESWAR...
Y. Wood
lignocell
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May 4, 2005
2:46 pm
1576
hi, please give details of the molecule and its structure in order to ease the job of search. also be specific in u'r question. also give id where to send the...
mohammed amer
amer70178
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May 5, 2005
8:51 am
1577
I recently used http://www.allapproveloans.com to refinance, got a much better interest rate and am saving hundreds per month. No obligation, no cost....
tmaljkgs
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May 5, 2005
10:00 am
1578
Dear collegues: Here is an intresting synthetic problem I am going through now days. It seems to be very simple conversion but a bit tricky. Please see...
Purushottam Dewang
dewangpm
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May 5, 2005
1:03 pm
1579
... days. It seems to be very simple conversion but a bit tricky. Please see attached JPEG image file. I am trying to couple acid chloride with amine or with...
sancho100
Offline
May 5, 2005
2:16 pm
1580
You can search about bezoxazines and imidazolidines in Synthethic Communications, and the principal author is the Dr. Augusto Rivera, from Colombia. See too in...
David Trejos
jdleitre
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May 5, 2005
11:03 pm
1581
Dear Colleagues and Sancho, I am sorry the image file was not delivered properly. I am attaching MS word file herewith and also uploaded to Files section at...
Purushottam Dewang
dewangpm
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May 6, 2005
1:17 am
1582
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the organicchemistry group. File : /amide...
organicchemistry@yaho...
Send Email
May 6, 2005
1:20 am
1583
Dear Colleagues and Sancho, I am sorry the image file was not delivered properly. I am attaching MS word file herewith and also uploaded to Files section at...
Purushottam Dewang
dewangpm
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May 6, 2005
1:22 am
1584
... attaching MS ... group's ... structures. ... causing ... salt ... something ... compound 1. ... The =NH is more nucleophilic than the aromatic NH2. This...
sancho100
Offline
May 6, 2005
5:05 am
1585
Thanks sancho. you are right I want NH2 to attack carbonyl to form cyclized product. Hence I do not want both nitrogens to be acylated. Could you suggest some...
Purushottam Dewang
dewangpm
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May 6, 2005
5:20 am
1586
I send you today a good article. It could be new and adds to your knowledge ... Even A Smile… What do money, a good word, and removing something harmful from...
Sewway
olwen_m5
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May 7, 2005
2:34 pm
1587
AND THIS HAS ?WHAT? TO DO WITH ORGANIC CHEMISTRY/ Your **CHARITY** might begin by not imposing on the time and space of people who are seeking knowledge...
sancho100
Offline
May 7, 2005
4:47 pm
1588
Why we use 1,3 dithianes instead of 1,3 dioxanes in perparation of ketone and aldehyde?...
aminosi2004
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May 8, 2005
12:07 pm
1589
because oxygen is more electronegative than sulphur & sulphur can also extend its oxidation no.thus stabilizing the intermediate carbocation .generally used in...
annu vij
annu_7911
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May 10, 2005
5:38 pm
1590
more braoadly because dioxanes are easily hydrolysed under the conditions of their prperation,where as dithianes are stable. bye Discover Yahoo! Have fun...
mohammed amer
amer70178
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May 11, 2005
5:05 am
1591
dioxanes are alsobase stabilized & can also be used as protective groups for protecting the base sensitive groups like carbonyl mohammed amer...
annu vij
annu_7911
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May 11, 2005
5:23 am
1592
Dear, I WANT TO KNOW :IF WE HYDROGENATE THE CIS-ISOEUGENOL WITH HIDROGEN GAS AND CATALYST Ni WHIC SUPPORT IN THE ZEOLITE, HOW THE RECTION MECHANISM ?. THANKS...
newman_kimiaugm
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May 14, 2005
7:21 am
1593
Dear I want to derivatize risperidone for HPLC analysis to improve sensitivity downto 0.1 ng/ml. How could I derivatize it ?...
ta_068
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May 18, 2005
7:35 am
1594
can any one help me with specialised knowledge of amines!!! Im looking for a way to increase the nitrogen content in a secondary amine namely Tallow di amine....
watnextt
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May 20, 2005
7:26 am
1595
An article from the chemistry.org Website has been sent by sumayya. Here are the details of this article: Subject : Chemistry.org: Science that Matters -...
sony_101in@...
sony_101in
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May 20, 2005
8:26 am
1596
dear, hi, COME AGAIN. I WANT TO KNOW MANY INFORMATION ABOUT CIS-ISOEUGENOL. cAN YOU GIVE ME THAT INFORMATION ? THANKS, BEFORE....
newman_kimiaugm
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May 21, 2005
4:47 am
1597
Hello, got ur mail u asked something about CIS-ISOEUGENOL can u give me chemical formula for these i suggest web site where u can get details about many...
sumayya bagwan
sony_101in
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May 21, 2005
4:33 pm
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