1,3-二硫环庚烷的合成及香气研究  

Study on the Synthesis of 1,3-dithiocycloheptane and Odour

作　　者：胡卫兵[1] 刘红霞[1] 余爱农[1] 向必坤[1] 

机构地区：[1]湖北民族学院化学与环境工程学院,湖北恩施445000

出　　处：《食品科学》2005年第8期216-218,共3页Food Science

基　　金：国家民委重点科研项目(200145);湖北省教育厅重点项目(2003A007)

摘　　要：以硫代硫酸钠、1,4-二氯丁烷和甲醛为原料为原料,用BunteSalts法,经过一步操作合成了1,3-二硫环庚烷,其收率为63%。实验表明,当1,4-二氯丁烷与硫代硫酸钠以等摩尔投料时,可减少盐酸用量,并能避免单质硫的析出而影响分离提纯。用IR、1HNMR、MS证实了目标化合物结构,并对1,3-二硫环庚烷的香气进行了鉴定,结果表明1,3-二硫环庚烷具有浓郁的葱蒜气味,其阈值在水中为0.25×10-6,在植物油中为13.00×10-6。1,3- dithiocycloheptane were prepared through the aldehyde with Bunte＇s Salts prepared from 1,4-dichlorobutane and sodium thiosulfate. The yield of 1,3- dithiocycloheptane is 63%.The period of reaction is about 14h.The optimum molar ratio of 1,4-dichlorobutane and sodium thiosulfate was 1：1.The structure of 1,3- dithiocycloheptane were characterized by IR, ^1HNMR, MS. The odour of 1,3- dithiocycloheptane was identified ,the result showed that it＇ s odour is intense onion and garlic fragrance.. The threshold of 1,3- dithiocycloheptane is 0.25 × 10^-6-0.33 × 10^-6 in water and 13.00 × 10^-6-22.00 × 10^-6 in vegetable oil.

关 键 词：Bunte Salts法 合成 1 3-二硫环庚烷 香气 

分 类 号：O624.7[理学—有机化学] TQ651.1[理学—化学]