Chin. J. Org. Chem. ›› 2001, Vol. 21 ›› Issue (9): 676-680. Previous Articles     Next Articles

α-肉桂酰基二硫缩烯酮与Grignard试剂的加成反应区域 选择研究-烷硫基对反 应的调控作用

林春;赵彩虹;刘群;胡玉兰;方群欣;齐巍   

  1. 靶山师范学院化学系;东北师范大学化学系.长春(130024)
  • 发布日期:2001-09-25

Studies on the regioslectivity of addition reaction of girgnard reagents to α-cinnamoyl ketene dithioacetals-the modulation by alkylthio groups

Lin Chun;Zhao Caihong;Liu Qun;Hu Yulan;Fang Qunxin;Qi Wei   

  1. NE Normal Univ, Dept Chem.Changchun(130024)
  • Published:2001-09-25

The addition reaction of entyl, n-butyl, phenyl and benzyl Grignard reagents to α-cinnamoyl ketene dithioacetals which with 1, 3- propylenedithio or 1, 4-butylenedithio and diethylthio groups was studied. The conjuagted additional products at the carbon atom adjacent to aryl were obtained. When the alkylthio group was dimenethylthio, the products were so complicated that attempted seperation(silica gel) was failed. A probe reaction showed that the diethylthio group had different adjustment to this modulation reaction comparing with dimethylthio group in α-oxo ketene dithioacetls.

Key words: CARBONYL GROUP, DITHIO-, KENONE P, ADDITION REACTION, ALKYLTHIO GROUP, CINNAMIC ACID P, GRIGNARD REAGENT

CLC Number: