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Synthesis and Comparison of the Reactivity of Allyl Fluorides and ...

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52<br />

Chapter Two<br />

after purification via column chromatography [hexane: diethyl e<strong>the</strong>r (85:15)]. All three<br />

products exhibited a characteristic signal at ca. – 185 ppm in <strong>the</strong>ir 19 F{ 1 H} NMR spectra<br />

(Table 2.9).<br />

Starting<br />

Substrate<br />

(69)<br />

(68)<br />

(70)<br />

(71)<br />

Product Yield (%)<br />

(72)<br />

(73)<br />

(74)<br />

(75)<br />

Table 2.9 Yields obtained <strong>of</strong> fluorinated products (72)-(75)<br />

2.2.1.2 <strong>Syn<strong>the</strong>sis</strong> <strong>of</strong> Derivatised <strong>Allyl</strong> Benzoates<br />

After syn<strong>the</strong>sising several allylic fluorides as conducted by Gouverneur, it was found that<br />

<strong>the</strong>re was <strong>the</strong> possibility <strong>of</strong> creating a new library <strong>of</strong> allylic fluoride compounds which were<br />

derivatised on <strong>the</strong> benzoate ring. It could <strong>the</strong>n be observed whe<strong>the</strong>r functionalisation <strong>of</strong> <strong>the</strong><br />

ring had an effect on <strong>the</strong> allylic portion <strong>of</strong> <strong>the</strong> substrate in reactions with palladium in<br />

0<br />

33<br />

77<br />

55

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