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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
20-羧基白三烯B4
合成路线
(共 17 条)
85615-54-9
→
反应条件
80434-82-8
20-羧基白三烯B4
反应条件
lithium hydroxide in ethylene glycol dimethyl ether; water Ambient temperature;
参考文献
Zamboni, Robert; Rokach, Joshua
Tetrahedron Letters, 1982 , vol. 23, # 46 p. 4751 - 4754
106027-35-4
→
反应条件
80434-82-8
20-羧基白三烯B4
反应条件
tetrabutyl ammonium fluoride in tetrahydrofuran T=0 - 25°C;
参考文献
Nicolaou, K. C.; Chung, Y. S.; Hernandez, P. E.; Taffer, I. M.; Zipkin, R. E.
Tetrahedron Letters, 1986 , vol. 27, # 17 p. 1881 - 1882
928-90-5
5-己炔-1-醇
→
反应条件
80434-82-8
20-羧基白三烯B4
反应条件
3: imidazole / dimethylformamide / 0 - 25 °C 4: pyridinium p-toluene sulphonate / methanol / 48 °C 5: CrO3.2pyr., celite / CH2Cl2 / 0 °C 6: LDA / tetrahydrofuran / -78 - 25 °C 7: hydrogen / Lindlar 8: nBu4NF / tetrahydrofuran / 0 - 25 °C View Scheme
参考文献
Nicolaou, K. C.; Chung, Y. S.; Hernandez, P. E.; Taffer, I. M.; Zipkin, R. E.
Tetrahedron Letters, 1986 , vol. 27, # 17 p. 1881 - 1882
106027-25-2
→
反应条件
80434-82-8
20-羧基白三烯B4
反应条件
1: imidazole / dimethylformamide / 0 - 25 °C 2: pyridinium p-toluene sulphonate / methanol / 48 °C 3: CrO3.2pyr., celite / CH2Cl2 / 0 °C 4: LDA / tetrahydrofuran / -78 - 25 °C 5: hydrogen / Lindlar 6: nBu4NF / tetrahydrofuran / 0 - 25 °C View Scheme
参考文献
Nicolaou, K. C.; Chung, Y. S.; Hernandez, P. E.; Taffer, I. M.; Zipkin, R. E.
Tetrahedron Letters, 1986 , vol. 27, # 17 p. 1881 - 1882
106027-29-6
→
反应条件
80434-82-8
20-羧基白三烯B4
反应条件
1: LDA / tetrahydrofuran / -78 - 25 °C 2: hydrogen / Lindlar 3: nBu4NF / tetrahydrofuran / 0 - 25 °C View Scheme
参考文献
Nicolaou, K. C.; Chung, Y. S.; Hernandez, P. E.; Taffer, I. M.; Zipkin, R. E.
Tetrahedron Letters, 1986 , vol. 27, # 17 p. 1881 - 1882
106027-27-4
→
反应条件
80434-82-8
20-羧基白三烯B4
反应条件
1: CrO3.2pyr., celite / CH2Cl2 / 0 °C 2: LDA / tetrahydrofuran / -78 - 25 °C 3: hydrogen / Lindlar 4: nBu4NF / tetrahydrofuran / 0 - 25 °C View Scheme
参考文献
Nicolaou, K. C.; Chung, Y. S.; Hernandez, P. E.; Taffer, I. M.; Zipkin, R. E.
Tetrahedron Letters, 1986 , vol. 27, # 17 p. 1881 - 1882
106027-26-3
→
反应条件
80434-82-8
20-羧基白三烯B4
反应条件
1: pyridinium p-toluene sulphonate / methanol / 48 °C 2: CrO3.2pyr., celite / CH2Cl2 / 0 °C 3: LDA / tetrahydrofuran / -78 - 25 °C 4: hydrogen / Lindlar 5: nBu4NF / tetrahydrofuran / 0 - 25 °C View Scheme
参考文献
Nicolaou, K. C.; Chung, Y. S.; Hernandez, P. E.; Taffer, I. M.; Zipkin, R. E.
Tetrahedron Letters, 1986 , vol. 27, # 17 p. 1881 - 1882
106027-31-0
→
反应条件
80434-82-8
20-羧基白三烯B4
反应条件
1: hydrogen / Lindlar 2: nBu4NF / tetrahydrofuran / 0 - 25 °C View Scheme
参考文献
Nicolaou, K. C.; Chung, Y. S.; Hernandez, P. E.; Taffer, I. M.; Zipkin, R. E.
Tetrahedron Letters, 1986 , vol. 27, # 17 p. 1881 - 1882
92640-98-7
→
反应条件
80434-82-8
20-羧基白三烯B4
反应条件
2: imidazole / dimethylformamide / 0 - 25 °C 3: pyridinium p-toluene sulphonate / methanol / 48 °C 4: CrO3.2pyr., celite / CH2Cl2 / 0 °C 5: LDA / tetrahydrofuran / -78 - 25 °C 6: hydrogen / Lindlar 7: nBu4NF / tetrahydrofuran / 0 - 25 °C View Scheme
参考文献
Nicolaou, K. C.; Chung, Y. S.; Hernandez, P. E.; Taffer, I. M.; Zipkin, R. E.
Tetrahedron Letters, 1986 , vol. 27, # 17 p. 1881 - 1882
53036-80-9
→
反应条件
80434-82-8
20-羧基白三烯B4
反应条件
1: 60 percent / tetrahydrofuran; hexamethylphosphoric acid triamide / -78 °C 3: TFA / tetrahydrofuran; H2O / 6 h / Ambient temperature 4: Pb(OAc)4, Na2CO3 5: 30 percent / benzene / 16 h / 80 °C 6: 80 percent / NaBH4, CeCl3 / propan-2-ol / 0 °C 7: 40 percent / 1) CBr4; / 2) CH3CN 8: LiHMDS / tetrahydrofuran; hexamethylphosphoric acid triamide / -78 °C 9: -78 - -45 °C 10: 80 percent / (nBu)4NF / tetrahydrofuran / 0 - 25 °C 11: 70 percent / LiOH / 1,2-dimethoxy-ethane; H2O / Ambient temperature View Scheme
参考文献
Zamboni, Robert; Rokach, Joshua
Tetrahedron Letters, 1982 , vol. 23, # 46 p. 4751 - 4754
1
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