Xie, Chao; Wang, Jian-hui; Gong, Zheng-li published their research in Chaye Kexue on August 15 ,2008. The article was titled 《Analysis on aromatic constituents of fragrant flower [Chimonanthus praecox (L.) Link] in aroma releasing》.Application In Synthesis of 5-Chloro-1,2,4-thiadiazole The article contains the following contents:
The change of essential oil extracted by SDE method was studied by the gas chromatog. (GC), GC/MS and evaluation methods during Lamei [Chimonanthus praecox (L.) Link] blooming. The number and content of fragrant components of essential oil were changed during aroma releasing. The results showed that 26, 37, 43, 49 aromatic components in Lamei were identified by GC/MS data during the following four stages (bud, early spread, spread, blooming). In compared with the unbloomed bud, the content of alkyl compounds raised 0.590, 7.152 and 13.820 times and the alkenes compounds raised 0.424, 1.078 and 4.286 times, the alc. compounds raised 0.895, 3.324 and 5.091 times and the ester compounds raised 1.071, 2.182 and 15.101 times, resp. with the increase of opening of Lamei flower. The ketone compounds were appeared only during the later period of blooming. The content of ketone were increased steadily during the full blooming period and was 12.3 times higher than that in spreading flower period. Organoleptic evaluation showed that the Lamei buds expressed a low aroma and with green grass taste, and the specific aroma was only appeared during the flower-spreading period. It is characterized that the intensity of aroma was increased from low to high with the increasing of the flower opening. On the basis of above experiments results, the trend of fragrant components’ content by GC and GC/MS method and the results from organoleptic evaluation method were similar. The experimental process involved the reaction of 5-Chloro-1,2,4-thiadiazole(cas: 38362-15-1Application In Synthesis of 5-Chloro-1,2,4-thiadiazole)
5-Chloro-1,2,4-thiadiazole(cas: 38362-15-1) is a member of organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. They are generally not present in crude oils and are typically the result of additives, cleaning solutions or chemicals used for oil recovery.Application In Synthesis of 5-Chloro-1,2,4-thiadiazole
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics