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Facile Entry to 3,4-Dihydro-1H-pyrrolo[2,1-c][1,4]oxazines through the oxa-Pictet–Spengler Reaction

Abstract : An intermolecular approach to the construction of 3,4-dihydro-1H-pyrrolo[2,1-c][1,4]oxazines is reported for the first time using the oxa-Pictet–Spengler reaction. The method involves a sequence of carbon–carbon- and carbon–oxygen-bond formation between a substituted 2-(1H-pyrrol-1-yl)ethan-1-ol and an aldehyde/ketone. p-Toluenesulfonic acid (pTSA) was identified as a suitable catalyst to promote the reaction. The method provides a one-step conversion of various aldehydes/ketones into the corresponding 3,4-dihydro-1H-pyrrolo[2,1-c][1,4]oxazines. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01416444
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Submitted on : Wednesday, December 14, 2016 - 2:54:40 PM
Last modification on : Thursday, March 5, 2020 - 2:01:52 PM

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C.R. Reddy, A.G. Burra, K.K. Singarapu, R. Grée. Facile Entry to 3,4-Dihydro-1H-pyrrolo[2,1-c][1,4]oxazines through the oxa-Pictet–Spengler Reaction. European Journal of Organic Chemistry, Wiley-VCH Verlag, 2016, 2016 (31), pp.5274--5281. ⟨10.1002/ejoc.201600928⟩. ⟨hal-01416444⟩

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