SYNTHESIS OF PYRROLE DERIVATIVES VIA DEOXYGENATION OF 4H-1, 2-OXAZINES BY IRON CARBONYLS

S Nakanishi, Y Shirai, K Takahashi, Y Otsuji

Index: Nakanishi, Saburo; Shirai, Yoshihiro; Takahashi, Kenji; Otsuji, Yoshio Chemistry Letters, 1981 , p. 869 - 872

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Citation Number: 19

Abstract

The reaction of 5, 6-dihydro-4H-1, 2-oxazines, which are derived from α-bromooximes and enamines, with iron carbonyl complexes such as Fe 3 (CO) 12 and (C 2 H 5) 3 NH [HFe 3 (CO) 11] gives pyrrole derivatives in high yields, accompaning deoxygenation from the oxazines. The pyrroles are also obtained by an one-pot reaction using α-bromooximes, enamines and iron carbonyls.