Reactions of Cycloalkeno-1,2,3-selenadiazoles with Transition Metal Carbonyls
β Scribed by Prof. Dr. Keith H. Pannell; Dr. Armin J. Mayr; Rodney Hoggard; Prof. Dr. Roger C. Pettersen
- Publisher
- John Wiley and Sons
- Year
- 1980
- Tongue
- English
- Weight
- 210 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0044-8249
No coin nor oath required. For personal study only.
β¦ Synopsis
1). The aromatic protons form an AA'BB' system and the three-membered ring protons and ABX system. The detailed analysis of both systems permits exact determination only of the parameters of the aromatic protons. Protons and coupling constants of the ABX system can be assigned on the assumption that the benzylic hydrogen atoms H-3 and H-6 resonate further downfield than H-2, and H-7,. Table lists the proton sequence for this assignment.
π SIMILAR VOLUMES
SCHEME 1 RSnCl 3 reactions with potassium tetrakis(1-pyrazolyl)borate, tris(1-pyrazoly) borate, and bis(1-pyrazolyl)borate (where R β«Χ‘β¬ alkyl or aryl; Pz β«Χ‘β¬ pyrazolyl).
swurion me L ~L U J ~ rnar suoiimes auring rne reaction. in this way 1.4g (6.4mmol) of sublimed Cr(C0)6 and 1.8g (12.1 mmol) of ( I ) in lOml of dioxane were heated for about 36 h at the b. p. The unconsumed Cr(C0)6 was then removed from the cooled yellowish-brown solution by filtration, the dioxane