Acid-Catalyzed Rearrangement of α-Aminoalkylidene-β-alkoxy β-Lactams

Journal of Organic Chemistry

Volumn 45, Issue 6, 1980, Pages 936-942

  Hirai, Yoshiro ^a   Hirokami, Shun ichi ^a   Nagata, Masanori ^a   Morita, Masayuki ^a   Yamazaki, Takao ^a  

^a UNIVERSITY OF TOYAMA   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0343012357     PISSN: 00223263     EISSN: 15206904     Source Type: Journal    
DOI: 10.1021/jo01294a004     Document Type: Article

References (6)

1. T. Yamazaki, M. Nagata, S. Hirokami, Y. Hirai, and T. Date, Heterocycles, 9, 505 (1978)
2. S. Hirokami, Y. Hirai, M. Nagata, T. Yamazaki, and T. Date, J. Org. Chem., 44, 2083 (1979).
3. R. J. Stoodley, Tetrahedron, 31, 2321 (1975).
4. T. Kato, H. Yamanaka, J. Kawamoto, and H. Shimoura, Chem. Pharm. Bull., 17, 1889 (1969).
5. T. Oishi, M. Nagai, T. Onuma, H. Moriyama, K. Tsutae, M. Ochiai, and Y. Ban, Chem. Pharm. Bull., 17, 2306 (1969).
6. Melting points were measured with a Yanako micromelting-point apparatus and are uncorrected. Hitachi 215 grating infrared and Hitachi Model 200-01 spectrophotometers were used, respectively, to determine IR and UV spectra. Mass spectra were measured with JEOL-OISG-2 and JEOL-JMS-D 200 mass spectrometers. The NMR and 13C NMR spectra were measured with Me4Si as an internal standard on Varian EM-390 90-MHz and Hitachi R-900 FT spectrometers, respectively. Column chromatography was performed on alumina (activity II–III, Merck