Tetrahedron Letters

Aromatic ring synthesis by N-aminopyrrole Diels-Alder reaction. Characterization of the heteroatom fragment

AG Schultz, M Shen, R Ravichandran

Index: Schultz, Arthur G.; Shen, Ming; Ravichandran, Ramanathan Tetrahedron Letters, 1981 , vol. 22, # 19 p. 1767 - 1770

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Citation Number: 7

Abstract

1769 with regard to the mechanism of pyrazoline formation, we now consider two interesting possibilities8 illustrated in Scheme 1 with morpholinonitrene(12). An" ene" reaction of 12 with-DMAD would generate ylide 13 which would be expected to undergo thermal, disrotatory electro--cyclization to 10.

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