Chlorodinitrophenylhydrazine, a useful crystalline agent for absolute configuration determination of various chiral ketones
作者:Yasushi Kawai、Motoko Hayashi、Norihiro Tokitoh
DOI:10.1016/j.tet.2005.03.037
日期:2005.5
For the determination of absoluteconfiguration of various chiral ketones, we examined some hydrazines having a heavy atom as crystalline auxiliaries, and found that 2-chloro-4,6-dinitrophenylhydrazine is a useful crystalline agent for carbonyl compounds. Chiral hydrazones prepared from the hydrazine and various chiral ketones gave suitable single crystals for X-ray crystallographic analysis. The absolute