SEVEN-MEMBERED HETEROCYCLES FROM F-2-METHYL-2-PENTENE AND ORTHO-BIFUNCTIONAL BENZENES

Abstract
4-Fluoro-2-(F-ethyl)-3-(F-methyl)-1,5-benzoxazepine (2) was prepared by a simple reaction of F-2-methyl-2-pentene (1) with 2-aminophenol in the presence of triethylamine in diethyl ether. Catechol and o-phenylenediamine similarly reacted with 1 to give corresponding seven-membered heterocyles, i.e., 1,5-benzodioxepin and 1,5-benzodiazepin-2-one derivatives, respectively.

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