Fundamental Organic Chemistry
Fundamental Organic Chemistry
Fundamental Organic Chemistry
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4-Aldol Condensation<br />
In a test tube put 1ml of CH 3 CHO<br />
+3ml of NaOH then boiling 2 min.<br />
Colloidal Yellow<br />
ppt. is formed.<br />
The precipitate is<br />
2-butenal (19).<br />
NaOH<br />
2 CH 3<br />
CHO CH 3<br />
CH CH CHO<br />
2-butenal<br />
…(19)<br />
5-Iodoform Test :<br />
In the test tube put 1ml of CH 3 CHO<br />
+ 3ml of Iodine &heat on water bath<br />
for 3 min. then cool & add drop wise<br />
of NaOH until the iodine color<br />
disappear<br />
Yellow ppt. is<br />
formed<br />
The Yellow ppt. is<br />
Iodoform CHI 3 (20)<br />
CH 3<br />
O<br />
O<br />
3 I 2 NaOH<br />
C H CI 3 C H<br />
CHI 3<br />
+ HCOONa<br />
- 3 HI<br />
Iodal Iodoform<br />
...(20)<br />
6-Sodium nitroprusside Test:<br />
In the test tube put 1ml of CH 3 CHO<br />
+ 0.5 ml of Sodium nitroprusside then<br />
put drops of NaOH with shaking .<br />
Dark red color<br />
It’s Acetaldehyde<br />
49
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