Synthesis of pyrrolo [1, 3] diazepines by a dipolar cycloaddition—retro-Mannich domino reaction
M Liang, C Saiz, C Pizzo, P Wipf
Index: Liang, Mary; Saiz, Cecilia; Pizzo, Chiara; Wipf, Peter Tetrahedron Letters, 2009 , vol. 50, # 49 p. 6810 - 6813
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Citation Number: 9
Abstract
Microwave irradiation facilitated the synthesis of 4-arylthio-3-oxazolin-5-ones from ethyl cyanoformate, thiophenol, and cyclic ketones. Subsequent decarboxylation and in situ [3+ 2] cycloaddition provided novel 2, 3, 4, 5-tetrahydro-1H-pyrrolo [1, 2-c][1, 3] diazepine scaffolds after a spontaneous retro-Mannich domino reaction.
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