Kinetics and isotope effects of the Dehydrochlorination of 1, 1??dichloro??2, 2??bis??(4??nitrophenyl) ethane with 1, 5??diazabicyclo [4.3. 0] non??5??ene in aprotic solvents
G Schroeder, A Jarczewski
文献索引:Schroeder, Grzegorz; Jarczewski, Arnold Journal fuer Praktische Chemie (Leipzig), 1989 , vol. 331, # 6 p. 964 - 970
Abstract The kinetics of the reaction of 1, 1-dichloro-2, 2-bis-(4-nitrophenyl) ethane (1) with 1, 5-diazabicyclo-[4.3. 0] non-5-ene (DBN) in acetonitrile (MeCN), dichloromethane (DCM), tetrahydrofuran (THF), isopropylether (IPE) and hexane (Hex) solvents are reported. The reaction is a simple β-elimination forming 1-chloro-2, 2-bis-(4-nitrophenyl) ethane (2)(100% conversion). The rate constants are similar for MeCN, THF, IPE, but lower by a factor of 2 ...