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Siddhartha Gupta   Siddhartha Gupta is offline Siddhartha Gupta's messages in the community
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Catalogs Discussion Forums -> Organic Chemistry -> give one method to introduce a carbon atom into a carbon chain synthesis -> Go to message
This Post 2 points    (0 Olaaa!! Perrrfect answer.   in 1 votes )   [?]
U can use CN...cyanide...react it with HCN..
Catalogs Discussion Forums -> Organic Chemistry -> how is salicylic acid prepared what are its properties and ts uses -> Go to message
This Post 5 points    (1 Olaaa!! Perrrfect answer.   in 1 votes )   [?]
Salicylic acid is prepared by Reimer - Teimann reaction ...u can see it on wikipedia or any organic book...its a pretty popular reaction ...or check dis out:
http://en.wikipedia.org/wiki/Reimer-Tiemann_reaction
Catalogs Discussion Forums -> Organic Chemistry -> how isobutryaldehyde undergoes both aldol condensation as well as cannizzaro reaction -> Go to message
This Post 0 points    (0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]
Its got plenty of alpha Hydrogens...it shud just undergo aldol condensation...where did u read that it undergoes both??
Catalogs Discussion Forums -> Organic Chemistry -> ketone -> Go to message
This Post 0 points    (0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]

I guess it will depend on +I or -I effect....for eg. NO2CH-C(=0)CH3 will pull electrons towards itself due to -I effect of both N & C...so it will increase the delta+ charge on the carbonyl carbon , and so will make it a better candidate for Nucleophillic addition............
Catalogs Discussion Forums -> Organic Chemistry -> ketone -> Go to message
This Post 0 points    (0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]

Isn't Nucleophilic addition reaction (like addition of HCN) a process where there is no intermediate or carbocation/anion formed...then how can we decide??
Catalogs Discussion Forums -> Organic Chemistry -> Compounds containing oxygen : oxidation question -> Go to message
This Post 0 points    (0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]

Compounds containing oxygen: from Chemistry MCQ by Ahluwalia/Ghosh


the conversion CH3CH=CHCHO  --->  CH3CH=CHCOOH can be carried out by:


a) alkaline KMnO4        b) acidic K2Cr2O7


c) ammoniacal AgNo3  d) selenium dioxide


 
Catalogs Discussion Forums -> Organic Chemistry -> how do we differentiate between HCHO & CH3CHO with a caustic soda solution? -> Go to message
This Post 0 points    (0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]
how do we differentiate between HCHO & CH3CHO with a caustic soda solution?
 
 
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