反应条件
1: bromo[(3,4-dichlorophenyl)methyl]triphenylphosphorane With n-butyllithium in tetrahydrofuran; pentane T=0 - 20°C; 2.25 h; 2: tert-butyl 4-oxo-piperidine-1-carboxylate in tetrahydrofuran; pentane Wittig Reaction;
参考文献
Gong, Leyi; Wilhelm, Robert Stephen
Patent: US2005/90504 A1, 2005 ;
Location in patent: Page/Page column 13 ;
US 20050090504 A1
