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[Post New]3 Feb 2008 22:39:51 IST
    Subject: HELP plzzzzzzzzz
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dream (571)

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hey friends
can someone please list down all the selective reducing or oxidising agents and the groups that these compounds reduce or oxidise

this would b helpful to all and i would surely b grateful of u
    
[Post New]4 Feb 2008 22:23:50 IST
    Subject: Re:HELP plzzzzzzzzz
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dream (571)

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someone please reply
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[Post New]5 Feb 2008 19:43:07 IST
    Subject: Re:HELP plzzzzzzzzz
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Selvaganesh_i (312)

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The Relative Strengths of Common Oxidizing Agents and Reducing Agents


K+ + e- <----> K
Best


Ba2+ + 2 e- <----> Ba
reducing


Ca2+ + 2 e- <----> Ca
agents


Na+ + e- <----> Na



Mg2+ + 2 e- <----> Mg



H2 + 2 e- <----> 2 H-



Al3+ + 3 e- <----> Al



Mn2+ + 2 e- <----> Mn



Zn2+ + 2 e- <----> Zn



Cr3+ + 3 e- <----> Cr



S + 2 e- <----> S2-



2 CO2 + 2 H+ + 2 e- <----> H2C2O4



Cr3+ + e- <----> Cr2+



Fe2+ + 2 e- <----> Fe



Co2+ + 2 e- <----> Co



Ni2+ + 2 e- <----> Ni



Sn2+ + 2 e- <----> Sn



Pb2+ + 2 e- <----> Pb



Fe3+ + 3 e- <----> Fe



2 H+ + 2 e- <----> H2



S4O62- + 2 e- <----> 2 S2O32-



Sn4+ + 2 e- <----> Sn2+



Cu2+ + e- <----> Cu+



O2 + 2 H2O + 4 e- <----> 4 OH-



Cu+ + e- <----> Cu



I2 + 2 e- <----> 2 I-

oxidizing
MnO4- + 2 H2O + 3 e- <----> MnO2 + 4 OH-

power
O2 + 2 H+ + 2 e- <----> H2O2
Reducing
increases
Fe3+ + e- <----> Fe2+
power


Hg22+ + 2 e- <----> 2 Hg
increases


Ag+ + e- <----> Ag



Hg2+ + 2 e- <----> Hg



H2O2 + 2 e- <----> 2 OH-



HNO3 + 3 H+ + 3 e- <----> NO + 2 H2O



Br2(aq) + 2 e- <----> 2 Br-



2 IO3- + 12 H+ + 10 e- <----> I2 + 6 H2O



CrO42- + 8 H+ + 3 e- <----> Cr3+ + 4 H2O



Pt2+ + 2 e- <----> Pt



MnO2 + 4 H+ + 2 e- <----> Mn2+ + 2 H2O



O2 + 4 H+ + 4 e- <----> 2 H2O



Cr2O72- + 14 H+ + 6 e- <----> 2 Cr3+ + 7 H2O



Cl2(g) + 2 e- <----> 2 Cl-



PbO2 + 4 H+ + 2 e- <----> Pb2+ + 2 H2O



MnO4- + 8 H+ + 5 e-<----> Mn2+ + 4 H2O



Au+ + e- <----> Au



H2O2 + 2 H+ + 2 e- <----> 2 H2O



Co3+ + e- <----> Co2+

Best
S2O82- + 2 e- <----> 2 SO42-

oxidizing
O3(g) + 2 H+ + 2 e- <----> O2(g) + H2O

agents
F2(g) + 2 H+ + 2 e- <----> 2 HF(aq)
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[Post New]7 Feb 2008 10:35:21 IST
    Subject: Re:HELP plzzzzzzzzz
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dream (571)

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i meant in organic chem
see the forum man
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[Post New]7 Feb 2008 13:06:13 IST
    Subject: Re:HELP plzzzzzzzzz
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hash_include (381)

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umm.. i know a few..

(NH2)S is used to selectively reduce one of the  2 (or more) nitro groups
 in a benzene ring. but the nitro group it reduces depends in various factors like steric, H- bonding, etc.

then P/HI is used to reduce a -COOH grp to -CH3 tho im not sure if its selective in natture or not...

shall update if i remember more :)

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[Post New]7 Feb 2008 17:32:47 IST
    Subject: HELP plzzzzzzzzz
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karthik2007 (3716)

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NaBH4 is used to reduce carbonyl compounds to alcohols without affecting the double bonds. They don't affect Nitro groups as well

LAH reduces keto, aldehyde, and ester but does not affect double bonds
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[Post New]7 Feb 2008 22:28:42 IST
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ramkumar_november (1270)

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B2H6  selectively reduces acid in the prescence of ester or keto group
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[Post New]8 Feb 2008 06:50:14 IST
    Subject: HELP plzzzzzzzzz
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sivaramakh (253)

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dibal h does not reduce doublebon carbons but reduces c=o bond specificaly
<TABLE CELLSPACING="1" CELLPADDING="1" BORDER="0">
<TR><TD>


<DIV ALIGN="right">Glitter Graphics</DIV></TD></TR></TABLE>
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[Post New]8 Feb 2008 07:35:48 IST
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sid.shah.90 (603)

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Dichloroborane-Dimethyl Sulfide, A Highly Selective Reducing Agent for Reduction of Organyl Azides to Amines
______________________________________________
Siddhant Shah


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You can't control the wind, but you can adjust your sails.
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