粉蠹虫相关论文
The S (+) sulcatol(1) was prepared in 4 steps. Sodium phenyl sulfinate was reacted with bromoacetone in ethanol to giv......
橡胶树小蠹虫是胶园常见病虫害之一,年1995月~年月我场万多株开割株就有株发1219961122857现此虫害,其中被虫蛀死株,受害率。经2820.07......
摘 要 考察热改性橡胶木在海南岛自然环境下遭受粉蠹虫害的程度、热改性前后木材淀粉和游离糖含量变化。结果表明:橡胶木素材未经过......
5-氯-2-戊酮(2)经四步反应制得(R)-(+)-4-甲基-3-戊烯基对甲苯基亚砜(6),化合物6与乙醛进行不对称加成反应得手性醇(7),7经兰尼镍还原性反庆即合成出目标产物粉蠹虫......