... The Journal of Organic ... In another attempt either to form an azo compound or to convert the amino to a nitro group through a diazonium salt derived from ... Similar polarity of the mono- and diacylated compounds made the chromatographic separation difficult on larger scales. ...
[Sienkowska, Monika J.; Farrar, John M.; Zhang, Fan; Kusuma, Sharat; Heiney, Paul A.; Kaszynski, Piotr Journal of Materials Chemistry, 2007 , vol. 17, # 14 p. 1399 - 1411]