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The preparation of salicylic acid from phenol

The preparation of salicylic acid from phenol

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Y/hen <strong>salicylic</strong> <strong>acid</strong> is heated with<br />

"butyl alcohol and zinc chloride a homologue<br />

01 the <strong>acid</strong> is obtained, which on distillation<br />

goes into tutyl <strong>phenol</strong>.<br />

azo-compounds.<br />

It cotahines v^ith diazo-hodies to form<br />

nitrous <strong>acid</strong> passed into an etherial<br />

solution <strong>of</strong> <strong>salicylic</strong> <strong>acid</strong> gives nitro- and<br />

diaao-oxyhenzoic <strong>acid</strong>s.<br />

C.H^(OH).GOIIPhH.<br />

o 4<br />

At 210° aiiiline gives <strong>phenol</strong> and<br />

Gyanamide and alcohol at 100° form<br />

urea and ortho-oxybenzoic ether.<br />

Phenol and stannic chloride at 120°<br />

give op-di-oxy'benzophenone,<br />

V.'ith camphor it forms a compound<br />

C H 0„2G, H 0, which melts at 50°.<br />

7 6 3 10^5 •<br />

On heating with soda lime <strong>phenol</strong> and<br />

carton dioxide are formed<br />

C^H, (OH) GO. OH Geo = C,H_OH - GaCO_<br />

6 4 o 5 o<br />

17,

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