Isolation and structural investigation of the chromophore in the Fujiwara reaction as applied to chloramphenicol.
作者:KAZUO OKUMURA、YOSHIHIRO KURODA、TOYOZO UNO
DOI:10.1248/cpb.31.2737
日期:——
The structure of a red chromogen which is produced by applying the Fujiwara reaction to chloramphenicol was determined by means of NMR, mass spectroscopy and reasonance Raman spectroscopy. The red product was identified as 5-hydroxymethyl-4-(4-nitrobenzeno)-2, 3-pyrrolidindione. This compound is different from the nitrogenated polyene which is produced in the Fujiwara reaction applied to such gem-trichloro compounds as chloroform and benzotrichloride.