Phenylselenenyl chloride addition to the 3-exomethylene-1-cepham 1 gave mainly the seleno derivative 2 at room temperature while the dichloro derivative 2 was obtained in refluxinq 1,2-dichloroethane. Compounds 2. and 2
✦ LIBER ✦
Studies related to cephalosporins. 61. Bromination of 3-exomethylene in cepham derivatives
✍ Scribed by Maurizio Botta; Francesco De Angelis; Lorenzo de Ferra; Augusto Gambacorta; Rosario Nicoletti; Antonio Palleschi; Clara Marciante; Giorgio Pochetti
- Book ID
- 108371526
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- French
- Weight
- 558 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0040-4020
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## Abstract MP2 study of OH…N intramolecular hydrogen bond (IMHB) in 3‐imino‐propen‐1‐ol and its derivatives were performed and their IMHB energies were obtained using the related rotamers and open‐close methods. Also the topological properties of electron density distribution and charge transfer