2-乙基-1,3-环戊烷二酮合成路线 (共 14 条)
反应条件
triethylsilane; boron trifluoride diethyl etherate in trifluoroacetic acid Ambient temperature;
参考文献
Akhrem, A. A.; Lakhvich, F. A.; Lis, L. G.; Khripach, V. A.; Fil'chenkov, N. A.; Kozinets, V. A.
Doklady Chemistry, 1990 , vol. 311, # 4 p. 79 - 80
Dokl. Akad. Nauk SSSR Ser. Khim., 1990 , vol. 311, # 6 p. 1381 - 1384
反应条件
diethyl-1,4-dihydro-2,6-dimethyl-3,5-pyridine dicarboxylate; L-proline in dichloromethane T=25°C; 0.25 h;
参考文献
Organic and Biomolecular Chemistry, , vol. 6, # 22 p. 4176 - 4187
反应条件
sodium methylate in methanol; anhydrous xylene; water; dimethyl sulfoxide
反应条件
1: With boron trifluoride diethyl etherate in dichloromethane T=-78 - 20°C; 4 h; 2: With trifluoroacetic acid 24 h; Heating; Further stages.;
参考文献
Angewandte Chemie - International Edition, , vol. 46, # 21 p. 3966 - 3970
反应条件
Nafion-H; trifluoroacetic acid T=85°C; 10 h; Yield given;
参考文献
Synthetic Communications, , vol. 19, # 3and4 p. 373 - 378
反应条件
1: Na / ethanol 2: aq. HCl / Heating 3: (i) semicarbazide*HCl, NaOAc, aq. EtOH, (ii) NaOH, HOCH2CH2OH View Scheme
参考文献
Chemical and pharmaceutical bulletin, , vol. 13, # 11 p. 1359 - 1361
反应条件
1: aq. HCl / Heating 2: (i) semicarbazide*HCl, NaOAc, aq. EtOH, (ii) NaOH, HOCH2CH2OH View Scheme
参考文献
Chemical and pharmaceutical bulletin, , vol. 13, # 11 p. 1359 - 1361
反应条件
(i) semicarbazide*HCl, NaOAc, aq. EtOH, (ii) NaOH, HOCH2CH2OH; Multistep reaction;
参考文献
Chemical and pharmaceutical bulletin, , vol. 13, # 11 p. 1359 - 1361
反应条件
1: triethylenediamine / xylene 2: aq. HCl / methanol 3: NaBH4 / methanol 4: H2 / Raney-Ni / dioxane 5: Py 6: KOH / methanol 7: Li, liq. NH3 / diethyl ether; dioxane 8: CrO3, aq. H2SO4 / acetone View Scheme
参考文献
Hiraga
Chemical and pharmaceutical bulletin, 1965 , vol. 13, # 11 p. 1289 - 1294
反应条件
1: triethylenediamine / xylene 2: aq. HCl / methanol 3: NaBH4 / methanol 4: H2 / Raney-Ni / dioxane 5: Li, liq. NH3 / diethyl ether; dioxane View Scheme
参考文献
Hiraga
Chemical and pharmaceutical bulletin, 1965 , vol. 13, # 11 p. 1289 - 1294