4-氧代-四氢-硫代吡喃-3-羧酸甲酯合成路线 （共 24 条）
反应条件
1: benzene; phosphorus (V)-chloride
2: aqueous sulfuric acid
3: copper-powder; quinoline
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参考文献
Traverso
Chemische Berichte, 1958 , vol. 91, p. 1224,1228
反应条件
1: aqueous sulfuric acid; acetic acid
2: diethyl ether
3: oxalic acid / Hydrieren des Reaktionsprodukts an Platin in Aethanol
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参考文献
Onesta; Castelfranchi
Gazzetta Chimica Italiana, 1959 , vol. 89, p. 1127,1136
反应条件
1: aqueous sulfuric acid; acetic acid
2: diethyl ether
3: oxalic acid / Hydrieren des Reaktionsprodukts an Platin in Aethanol
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参考文献
Onesta; Castelfranchi
Gazzetta Chimica Italiana, 1959 , vol. 89, p. 1127,1136
反应条件
1: 1) NaH, hexamethylphosphoramide, 2) NaI / 1) THF, mineral oil, 1 h, room temperature, 2) 4 h, reflux
2: 30 percent / n-Bu3SnH, AIBN / benzene / 1 h / Heating
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参考文献
Dowd; Choi
Tetrahedron Letters, 1989 , vol. 30, # 45 p. 6129 - 6132
反应条件
1: 85 percent / KOH / H2O; methanol / 0.03 h / 20 °C
2: 92 percent / 14 h / 20 °C
3: 78 percent / 10percent H2SO4 / H2O / 29 h / Heating
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参考文献
Takemura, Tetsuo; Jones, Brian J.
Journal of Organic Chemistry, 1983 , vol. 48, # 6 p. 791 - 796
反应条件
1: 91 percent / 5percent sulfuric acid / 5 h / Heating
2: 92 percent / 2,2-dimethoxypropane, p-toluenesulfonic acid / benzene / 6 h / Heating
3: p-toluenesulfonic acid / benzene / 4 h / Heating
4: sodium periodate / H2O; methanol / 10 h / 60 °C
5: 73 percent / potassium tert-butoxide / CCl4; 2-methyl-propan-2-ol / 20 h / 50 - 55 °C
6: 84 percent / pyridinium p-toluenesulfonate, water / acetone / 24 h / Heating
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参考文献
Matsuyama, Haruo; Miyazawa, Yasuyuki; Takei, Yuji; Kobayashi, Michio
Chemistry Letters, 1984 , p. 833 - 836
反应条件
1: 91 percent / 5percent sulfuric acid / 5 h / Heating
2: 92 percent / 2,2-dimethoxypropane, p-toluenesulfonic acid / benzene / 6 h / Heating
3: p-toluenesulfonic acid / benzene / 4 h / Heating
4: sodium periodate / H2O; methanol / 10 h / 60 °C
5: 73 percent / potassium tert-butoxide / CCl4; 2-methyl-propan-2-ol / 20 h / 50 - 55 °C
6: pyridinium p-toluenesulfonate, water / acetone / 24 h / Heating
View Scheme
参考文献
Matsuyama, Haruo; Miyazawa, Yasuyuki; Takei, Yuji; Kobayashi, Michio
Chemistry Letters, 1984 , p. 833 - 836
反应条件
2,3-dicyano-5,6-dichloro-p-benzoquinone in 1,4-dioxane
20 h; Heating;
参考文献
Casy, Guy; Lane, Simon; Taylor, Richard J. K.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1986 , p. 1397 - 1404
反应条件
magnesium sulfate; manganese(IV) oxide in chloroform
5 h;
参考文献
Lane, Simon; Quick, Stephen J.; Taylor, Richard J.K.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1985 , p. 893 - 898
反应条件
magnesium sulfate; manganese(IV) oxide in chloroform
5 h;
参考文献
Lane, Simon; Quick, Stephen J.; Taylor, Richard J.K.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1985 , p. 893 - 898
