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结构式
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
91958-13-3
合成路线
(共 6 条)
91958-13-3
→
反应条件
110751-41-2
反应条件
1-methyl-pyrrolidin-2-one 1.5 h; Heating;
参考文献
Kakigami, Takuji; Usui, Toshinao; Tsukamoto, Katsura; Kataoka, Tadashi
Chemical and Pharmaceutical Bulletin, 1998 , vol. 46, # 1 p. 42 - 52
91958-13-3
→
反应条件
149466-67-1
4-(乙酰氨基)-2,3-二氢-1-苯并呋喃-7-羧酸甲酯
反应条件
1: 94.9 percent / N-methylpyrrolidone / 1.5 h / Heating 2: OsO4 / diethyl ether; H2O / 0.17 h / 20 - 25 °C 3: NaIO4 / diethyl ether; H2O / 12 h / 20 - 25 °C 4: NaBH4 / methanol / 2 h / 20 - 25 °C 5: 86.7 percent / diethyl azodicarboxylate, Ph3P / tetrahydrofuran / 1 h / 20 - 25 °C View Scheme
参考文献
Kakigami, Takuji; Usui, Toshinao; Tsukamoto, Katsura; Kataoka, Tadashi
Chemical and Pharmaceutical Bulletin, 1998 , vol. 46, # 1 p. 42 - 52
91958-13-3
→
反应条件
143878-29-9
4-乙酰氨基-5-氯-2,3-二氢苯并呋喃-7-羧酸甲酯
反应条件
1: 94.9 percent / N-methylpyrrolidone / 1.5 h / Heating 2: OsO4 / diethyl ether; H2O / 0.17 h / 20 - 25 °C 3: NaIO4 / diethyl ether; H2O / 12 h / 20 - 25 °C 4: NaBH4 / methanol / 2 h / 20 - 25 °C 5: 86.7 percent / diethyl azodicarboxylate, Ph3P / tetrahydrofuran / 1 h / 20 - 25 °C 6: NCS / dimethylformamide / 3 h / 70 °C View Scheme
参考文献
Kakigami, Takuji; Usui, Toshinao; Tsukamoto, Katsura; Kataoka, Tadashi
Chemical and Pharmaceutical Bulletin, 1998 , vol. 46, # 1 p. 42 - 52
91958-13-3
→
反应条件
4093-28-1
对乙酰氨基-邻甲氧基苯甲酸甲酯
反应条件
trifluoroacetic acid in toluene T=20°C; 20 h;
参考文献
Fletcher, Steven; Gunning, Patrick T.
Tetrahedron Letters, 2008 , vol. 49, # 33 p. 4817 - 4819
91958-13-3
→
反应条件
202664-85-5
4-乙酰氨基-2-羟基-3-(2-羟基乙基)苯甲酸
反应条件
1: 94.9 percent / N-methylpyrrolidone / 1.5 h / Heating 2: OsO4 / diethyl ether; H2O / 0.17 h / 20 - 25 °C 3: NaIO4 / diethyl ether; H2O / 12 h / 20 - 25 °C 4: NaBH4 / methanol / 2 h / 20 - 25 °C View Scheme
参考文献
Kakigami, Takuji; Usui, Toshinao; Tsukamoto, Katsura; Kataoka, Tadashi
Chemical and Pharmaceutical Bulletin, 1998 , vol. 46, # 1 p. 42 - 52
91958-13-3
→
反应条件
123654-26-2
4-氨基-5-氯-2,3-二氢-7-苯并呋喃苯甲酸
反应条件
1: 94.9 percent / N-methylpyrrolidone / 1.5 h / Heating 2: OsO4 / diethyl ether; H2O / 0.17 h / 20 - 25 °C 3: NaIO4 / diethyl ether; H2O / 12 h / 20 - 25 °C 4: NaBH4 / methanol / 2 h / 20 - 25 °C 5: 86.7 percent / diethyl azodicarboxylate, Ph3P / tetrahydrofuran / 1 h / 20 - 25 °C 6: NCS / dimethylformamide / 3 h / 70 °C 7: 90.3 percent / 4N NaOH / methanol / 2 h / Heating View Scheme
参考文献
Kakigami, Takuji; Usui, Toshinao; Tsukamoto, Katsura; Kataoka, Tadashi
Chemical and Pharmaceutical Bulletin, 1998 , vol. 46, # 1 p. 42 - 52