Intramolecular Diels-Alder reactions. 12. Competitive [4+ 2] and [2+ 2] cycloadditions of N-(phenylpropargyl)-cis-cinnamamide

LRH Klemm, YN Hwang…

文献索引：Klemm,L.H. et al. Journal of Organic Chemistry, 1976 , vol. 41, # 24 p. 3813 - 3819

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被引用次数: 6

摘要

The second fraction afforded 0.82 g (12%) of 3-anilino-5, 5-di-methyl-2-cyclobexen-1-one (8), mp 184-185" C (benzene-hexane), as yellowish needles: ir (Nujol) 3200 (NH), 1590 (C= O), and 1560 cm-I (C= C); NMR (CDCl?) 6 1.00 (s, 6 H, methyl protons), 2.05 Is, 7.05-7.40 (m, 5 H, phenyl protons), and 8.70-8.80 (broad, 1 H, NH); mass spectrum (70 eV) mle 215 (M+). Anal. Calcd for C14H17NO: C, 78.10; H, 7.96; N, 6.51. Found: C, 77.76; H, 7.82; N, ...