[lissydoll206]

When you react propanol with the CrO3 and H2SO4, what is the product of the reaction?  Does the OH substituent group just become an O double bonded on the end of the propane? I am confused.  Any help would be greatly appreciated.

(CH3)2CH-OH    ---- CrO3, (HO)2SO2 --------->   product???


Thanks!

[Dan]

Look up oxidation of alcohols in any organic chemistry textbook.

or http://www.google.co.uk/search?hl=en&safe=off&rls=GGLR%2CGGLR%3A2005-38%2CGGLR%3Aen&q=alcohol+oxidation+chromate&btnG=Search&meta=

The first result has the answer

[victor]

also look for Jones Reagent.. 
Oh, talking about oxidation..I also wanna ask this..it's about oxidation mechanism..
In my chemistry textbook for school student..it's written that oxidation process in alcohol is taking a hydrate form as a transition then, one of the -OH group will release H+ and become a carbonyl bond...is it true? I just confused with that..
maybe it's like this:

R-CH2-OH --oxidator--> [R-CH(OH)2] ---> R-CH=O --> RCO2H

Simply ask, can anyone tell me how the mechanism is??

[Dan]

The hydrated aldehyde is oxidised to the carboxylic acid.

RCHO ----Water----> RCH(OH)₂ ---Ox----> RCH(OH)O-CrO₃H ------> RCO₂H  +  H₂CrO₃

The highlighted H is the one that is removed by CrO₃.
As far as I know, that is the mechanism.

[victor]

Okay..I get it now..thanks for da reply..