1: With n-butyllithium in diethyl ether T=0°C; 1 h; Inert atmosphere; 2: With sulfur in diethyl ether T=0 - 20°C; 6 h; 3: With sodium tetrahydroborate in tetrahydrofuran T=0 - 20°C; 2 h;
参考文献
Nippon Steel and Sumikin Chemical Co., Ltd.; SUDA Mitsuru; KAI Takahiro; MATSUMOTO Megumi
Patent: EP2628742 A1, 2013 ;
Location in patent: Paragraph 0149 ;
1.1: 74.5 percent / conc. HCl / 65 °C 2.1: NaH / dimethylformamide; various solvent(s) / 0.5 h / 20 °C 2.2: 80 percent / dimethylformamide; various solvent(s) / 7 h / 20 - 60 °C View Scheme
参考文献
Paizs, Csaba; Katona, Adrian; Retey, Janos
Chemistry - A European Journal, 2006 , vol. 12, # 10 p. 2739 - 2744
