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乙二醇
甲醛
63148-62-9
MDI
丁酮
二甲基亚砜
碳酸氢钠
471-34-1
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乙二醇
甲醛
63148-62-9
MDI
丁酮
二甲基亚砜
碳酸氢钠
471-34-1
67271-32-3
合成路线
(共 5 条)
3249-68-1
丁酰乙酸乙酯
→
反应条件
67271-32-3
反应条件
1: With sulfuryl dichloride in diethyl ether T=0 - 20°C; 4 h; 2: With sodium hydrogencarbonate pH=7;
参考文献
Roche Palo Alto LLC
Patent: US2007/37974 A1, 2007 ;
Location in patent: Page/Page column 10 ;
US 20070037974 A1
609-15-4
2-氯乙酰乙酸乙酯
→
反应条件
67271-32-3
反应条件
1: ethyl 2-chloro-3-oxobutanoate With n-butyllithium; diisopropylamine in tetrahydrofuran T=0°C; 1 h; 2: ethyl halide in tetrahydrofuran T=-78 - 20°C; 14 h; regioselective reaction;
参考文献
Specowius, Verena; Rahn, Thomas; Adeel, Muhammad; Reim, Stefanie; Feist, Holger; Saghyan, Ashot S.; Langer, Peter
Monatshefte fur Chemie, 2013 , vol. 144, # 5 p. 627 - 631
67271-32-3
→
反应条件
81569-55-3
乙基2-溴-4-丙基-1,3-噻唑-5-羧酸酯
反应条件
1: acetonitrile / 0.2 h / 80 °C 2: isopentyl nitrite; copper(I) bromide / acetonitrile / 0.2 h / 0.25 - 65 °C View Scheme
参考文献
Sharma, Lalima; Sattigeri, Jitendra A.; Kumar, Narest; Yadav, Ajay; Momim, Rijwan; Ahmed, Shahadat; Cliffe, Ian A.; Bhatnagar, Pradip Kumar; Ghosh, Sanjay; Raj, V. Samuel; Upadhyay, Dilip J.
Patent: US2012/108565 A1, 2012 ;
67271-32-3
+
1193-00-6
对氯苯酚钠盐二水
→
反应条件
823214-61-5
反应条件
in toluene T=80°C; 24 h;
参考文献
Perrone, Maria Grazia; Santandrea, Ernesto; Dell'Uomo, Natalina; Giannessi, Fabio; Milazzo, Ferdinando Maria; Sciarroni, Anna Floriana; Scilimati, Antonio; Tortorella, Vincenzo
European Journal of Medicinal Chemistry, 2005 , vol. 40, # 2 p. 143 - 154
67271-32-3
→
反应条件
848890-33-5
反应条件
1: 70 percent / toluene / 24 h / 80 °C 2: 73 percent / NaBH4 / methanol / 3 h / 0 - 20 °C View Scheme
参考文献
Perrone, Maria Grazia; Santandrea, Ernesto; Dell'Uomo, Natalina; Giannessi, Fabio; Milazzo, Ferdinando Maria; Sciarroni, Anna Floriana; Scilimati, Antonio; Tortorella, Vincenzo
European Journal of Medicinal Chemistry, 2005 , vol. 40, # 2 p. 143 - 154