1: pentan-3-one With tributyl-amine; titanium tetrachloride in dichloromethane
T=-78°C;
2: methylglyoxylate methanol hemiacetal in dichloromethane
T=-78 - 20°C; Further stages.;
参考文献
Tanabe, Yoo; Mitarai, Kumi; Higashi, Takahiro; Misaki, Tomonori; Nishii, Yoshinori
Chemical Communications, 2002 , # 21 p. 2542 - 2543
1: cerium; Monobrombernsteinsaeuraethylester (germ.)=monobromo ethyl succinate With iodine in tetrahydrofuran
T=0°C; 0.5 h; Inert atmosphere;
2: pentan-3-one in tetrahydrofuran
T=0 - 20°C; 3.5 h; Inert atmosphere;
参考文献
Rodrigues, Shirley M. M.; Nardini, Viviani; Constantino, Mauricio G.; Da Silva, Gil Valdo J.
Tetrahedron Letters, 2012 , vol. 53, # 45 p. 6136 - 6137,2
