(R)-(+)-2,2-二甲基-1,3-二氧戊环-4-甲醛合成路线 (共 94 条)
反应条件
1: NaBH(OAc)3 / tetrahydrofuran / 16 h / 20 °C
2: H2 / Pd(OH)2/C / ethanol / 20 °C
View Scheme
参考文献
Danklmaier, Johann; Hoenig, Helmut
Liebigs Annalen der Chemie, 1988 , p. 1149 - 1154
反应条件
1: sodium tetrahydroborate / ethanol / 0 °C
2: triethylamine / 2 h / 0 °C
3: sodium azide / N,N-dimethyl-formamide / 90 °C
View Scheme
参考文献
Ganesan; Muraleedharan
Nucleosides, Nucleotides and Nucleic Acids, 2010 , vol. 29, # 2 p. 91 - 96
反应条件
2: 87 percent / DIBAL
View Scheme
参考文献
White; Hrnciar
Journal of Organic Chemistry, 2000 , vol. 65, # 26 p. 9129 - 9142
反应条件
1: With potassium carbonate in water; isopropyl alcohol
T=0 - 20°C; Horner-Wadsworth-Emmons olefination; Inert atmosphere;
2: With 1-bromo-butane; lithium aluminium tetrahydride in tetrahydrofuran
T=-78 - 20°C; Inert atmosphere; diastereoselective reaction;
参考文献
Liu, Zheng; Gong, Yaqiong; Byun, Hoe-Sup; Bittman, Robert
New Journal of Chemistry, 2010 , vol. 34, # 3 p. 470 - 475
参考文献
EGIS GYOGYSZERGYAR RT.
Patent: WO2004/41805 A1, 2004 ;
Location in patent: Page 45-46 ;
反应条件
pyrrolidine in toluene
参考文献
Wang, Nai-Xing; Yu, An-Guang; Wang, Gui-Xia; Zhang, Xiu-Hui; Li, Qian-Shu; Li, Zhen
Synthesis, 2007 , # 8 p. 1154 - 1158
反应条件
pyrrolidine in toluene
参考文献
Wang, Nai-Xing; Yu, An-Guang; Wang, Gui-Xia; Zhang, Xiu-Hui; Li, Qian-Shu; Li, Zhen
Synthesis, 2007 , # 8 p. 1154 - 1158
反应条件
1: methanol / 0 °C
2: 93 percent / H2; Raney nickel / methanol / 4500.36 Torr
View Scheme
参考文献
Mulzer, Johann; Berger, Markus
Tetrahedron Letters, 1998 , vol. 39, # 8 p. 803 - 806
反应条件
zinc in tetrahydrofuran; diethyl ether
参考文献
SHILPA MEDICARE LTD
Patent: WO2008/26222 A2, 2008 ;
Location in patent: Page/Page column 8 ;
反应条件
zinc in tetrahydrofuran; diethyl ether
1 h; Heating;
参考文献
Hertel; Kroin; Misner; Tustin
Journal of Organic Chemistry, 1988 , vol. 53, # 11 p. 2406 - 2409