Ceric ammonium nitrate promoted free radical cyclization reactions leading to β-lactams

Tetrahedron Letters

Volumn 38, Issue 10, 1997, Pages 1829-1832

  D'Annibale, Andrea ^a   Pesce, Antonella ^a   Resta, Stefano ^a   Trogolo, Corrado ^a  

^a SAPIENZA UNIVERSITY OF ROME   (Italy)

Author keywords

[No Author keywords available]

Indexed keywords

AMMONIUM NITRATE; BETA LACTAM DERIVATIVE;

ARTICLE; CYCLIZATION; DRUG SYNTHESIS; REACTION ANALYSIS; STEREOCHEMISTRY;

EID: 0031562449     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4039(97)00162-7     Document Type: Article

References (22)

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21. 2= 4.0 Hz); 3.06 (3H, s); 3.82 (1H, d, J= 2.4 Hz); 5.02 (1H, d, J= 2.4 Hz); 7.2-7.4 (10H, m). 8c: 1.18 (9H, s); 2.15 (3H, s); 2.97 (3H, s); 3.75 (1H, d, J=2.2 Hz); 5.07 (1H, d, J=2.2 Hz); 7.1-7.4 (10H, m). 9c: 0.78 (9H, s); 1.70 (3H, s); 2.70 (3H, s); 3.65 (1H, d, J= 4.4 Hz); 5.04 (1H, d, J= 4.4 Hz); 7.1-7.5 (10H, m). 8d: 1.48 (3H, s); 1.98 (3H, s); 3.00 (1H, d, J= 12.9 Hz); 3.08 (3H, s); 3.82 (1H, d, J= 2.4 Hz); 3.90 (1H, d, J= 12.9 Hz); 4.00 (1H, d, J= 2.4 Hz); 7.1-7.4 (10H, m). 9d: 1.50 (3H, s); 1.55 (3H, s); 2.91 (3H, s); 3.62 (1H, d, J= 4.4 Hz); 4.04 (1H, d, J= 15.0 Hz); 4.46 (1H, d, J= 4.4 Hz); 5.02 (1H, d, J= 15.0 Hz); 7.2-7.4 (10H, m). 8e: 1.57 (3H, s); 1.90 (3H, s); 3.05 (3H, s); 3.55 (1H, d, J= 2.6 Hz); 4.12 (1H, d, J= 2.6 Hz); 7.2-7.4 (5H, m). 9e: 1.60 (3H, s); 2.90 (3H, s); 3.52 (1H, d, J= 3.7 Hz); 4.68 (1H, d, J= 3.7 Hz); 7.2-7.5 (5H, m). 9f: 1.45 (9H, s); 1.52 (3H, s); 1.58 (3H, s); 2.83 (3H, s); 3.55 (1H, d, J=4.3 Hz); 4.75 (1H, d, J= 4.3 Hz); 7.2-7.5 (5H, m).
22. 11. D'Annibale, A.; Pesce, A.; Resta, S.; Trogolo, C. Tetrahedron Letters 1996, 37, 7429-7432.