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Partially fluorinated heterocyclic compounds part vii. New syntheses of 4,5,6,7-tretrafluoro-2-methylbenzo[b]furan

✍ Scribed by G.M. Brooke

Publisher: Elsevier Science
Year: 1968
Tongue: French
Weight: 214 KB
Volume: 9
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)89737-3

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✦ Synopsis

A reoent Paper in this series described a conventional ring-oyolisation procedure for the foraaation of a partially fluorinated benso[blfkran derivative (2): F P P co2Et NaH F OH P 0 0CR2C02Et Ir m U C02M P P However, we have also exploited the susoeptibility of highly fluorinated aromatic oompounds to nuoleophilio replaoement of fluorine by carbanions to prepare benzoibjthiophen (3) and indole (4) derivatives, e.g.

F 2: I[= 9; n-ph oto.

sohro 2. AOIUloWl@dK8Mlt Thm Author thanka Profesmx V&R. Hmgravo and Dr. 1.6.C. Coutts for their ti8VO8t ud h&38kIhl S~ltiIlg COZ'jBOl'8tiOXl, Avonmouth, fW (IOllOX'OU8 &ft8 Of Ohdoil8. hf=-08 1.

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