A Convenient Synthesis of 4-Trifluoromethylimidazol-1-ols
摘要:
1,1,1-Trifluoroalkane-2,3-dione 3-oximes easily obtainable from aldehyde dialkylhydrazones were reacted with aldehydes in: the presence of ammonium acetate followed by treatment with 1N HCl affording 4-trifluofomethylimidazol-1-ols in good yields.
A Convenient Synthesis of 4-Trifluoromethylimidazol-1-ols
摘要:
1,1,1-Trifluoroalkane-2,3-dione 3-oximes easily obtainable from aldehyde dialkylhydrazones were reacted with aldehydes in: the presence of ammonium acetate followed by treatment with 1N HCl affording 4-trifluofomethylimidazol-1-ols in good yields.
A convenient synthesis of 4-trifluoromethyl-4<i>H</i>-[1,5,2]dioxazines and 4-trifluoromethyl-6<i>H</i>-[1,2,5]oxadiazines
作者:Yasuhiro Kamitori
DOI:10.1002/jhet.5570360415
日期:1999.7
aldehyde dimethylhydrazones were reacted with several aldehydes and ketones in the presence of acetic acid to afford 4-trifluoromethyl-4H-[1,5,2]dioxadines 3 in satisfactory yields. When the reaction was carried out in the presence of ammonium acetate, 4-trifluoromethyl-6H-[1,2,5]oxadiazines were obtained in good yields.