4-氧代-3,4-二氢-2H-吡喃-2-羧酸乙酯合成路线 (共 3 条)
反应条件
zinc(II) chloride in tetrahydrofuran; toluene T=20°C; 0.5 h;
参考文献
WO2013/130976 A1, ;
Paragraph 00287 ;
反应条件
zinc(II) chloride in tetrahydrofuran T=20°C; 72 h;
参考文献
US7115624 B1, ;
Page/Page column 85-87 ;
US 7115624 B1
反应条件
1: With titanium(IV) isopropylate; (R)-(+)-5,5',6,6',7,7',8,8'-octahydro-bi-2-naphthol in toluene T=0°C; hetero-Diels-Alder reaction; 24 h; 2: With trifluoroacetic acid in toluene T=0°C; 0.25 h; Further stages.;
参考文献
Journal of Organic Chemistry, , vol. 67, # 7 p. 2175 - 2182