Tobacco Science & Technology, 2012, 6, p. 41-44, ISSN.1002-0861
Studies on synthesis, characterization and pyrolysis of zinc (II) and calcium (II) complex compounds of maltol and ethyl maltol
Technology Center, China Tobacco Hunan Industrial Co., Ltd., Changsha 410007, P.R. China
In order to investigate their pyrolytic behavior, four complexes of maltol/ethyl maltol and zinc (II)/calcium (II) were prepared and characterized by 1H NMR, 13C NMR, UV, IR spectra. The pyrolytic experiments of the complex alone or in cigarettes were conducted by on-line CDS5200 pyrolyser-GC/MS. The results showed that: 1) the complexation between maltol/ethyl maltol and zinc (II)/calcium (II) occurred obviously; 2) relevant maltol or ethyl maltol ligands released effectively from each pyrolyzed complex at 400 °C in He atmosphere; 3) the similar ligands were also released from the burning cigarette containing respective complex.