Spectroscopic and stability studies on unsymmetrical 1,3-dialkyl-1,3-diphosphacyclobutane-2,4-diyls
✍ Scribed by Shigekazu Ito; Manabu Kikuchi; Joji Miura; Noboru Morita; Masaaki Yoshifuji
- Book ID
- 112175540
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 507 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0894-3230
- DOI
- 10.1002/poc.1957
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract Detailed ^1^__H__‐, ^13^__C__‐, and ^31^__P__ NMR studies of 1‐__t__‐butyl‐3‐methyl‐2,4‐bis(2,4,6‐tri‐__t__‐butylphenyl)‐1,3‐diphosphacyclobutane‐2,4‐diyl reveal several unusual coupling constants together with recognition of the diastereotopicity of the compound. These new data support
## Abstract The preparation and properties of a 1‐amino‐1,3‐diphosphacyclobutane‐2,4‐diyl and a 1‐benzoyl‐1,3‐diphosphacyclobutane‐2,4‐diyl, which can be regarded as functionalized cyclic biradical derivatives, were investigated. Hydrolysis of 1‐diisopropylamino‐3‐methyl‐2,4‐bis(2,4,6‐tri‐__tert__‐
We have succeeded in catenating two sterically encumbered 1, 3-di-t-butyl-2,4-bis(2,4,6tri-t-butylphenyl)-1,3-diphosphacyclobutane-2,4-diyl units with a spacer 1,2-(CH 2 ) 2 C 6 H 4 to obtain bis(biradicals) as considerably stable compounds. We have discussed physicochemical properties of the dimer,