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Organic Chemistry

Blazing goIITian

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31 Mar 2009 17:02:15 IST

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401

damn imp. help

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Please explain formation of compound S in details

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abhishek

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Joined: 10 May 2008

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31 Mar 2009 17:51:01 IST

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the ans is D.S is the dry distillation of calcium salts to give aldehydes.loook itt up in the chapter Aldehydes and ketones.rate plzz if at all I helped u.

pranav agrawal

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31 Mar 2009 17:56:50 IST

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CH (triple bond) CH + dil. H2SO4 + Hg+2 -------> CHOH = CH2 ----> taotomarise ----> CH3 CH0 -----> chromic acid oxidise ------> CH3COOH

so [Q] ---> CH3COOH

no need to go ahead~~

only option is (D) ....

do rate if correct~~~

Bikramjit

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2 Apr 2009 11:16:27 IST

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Someone explain the Formation of S in details. Rates assured

Shubhat aka Shubbhuu

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Joined: 31 Mar 2009

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2 Apr 2009 11:29:12 IST

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On reaction with Ca(OH)2, the calcium salt (CH3COO)2Ca is formed. This along with (HCOO)2Ca is heated to form the crossed dry distillation product CH3CHO and CaCO3. Now CH3 CHO reacts with conc. H2SO4 to form paraldehyde.

The dry distillation reaction is as follows

heat

( RCOO ) Ca ( OOCR' ) ======= Ca CO3 + RCOR', where R and R' could be the same or different.

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