1: With oxygen; ozone in dichloromethane
T=-78°C; 3 h;
2: With toluene-4-sulfonic acid in dichloromethane
T=-78 - 20°C; 1.5 h;
3: With dimethylsulfide in dichloromethane
T=20°C; 12 h; Title compound not separated from byproducts;
参考文献
Aurrecoechea, Jose M.; Gil, Jesus H.; Lopez, Beatriz
Tetrahedron, 2003 , vol. 59, # 36 p. 7111 - 7121