1.Twelve derivates of S-tetrazine including three of 1,6-dihydro-S-tetrazines prepared recently were screened by pesticide activity.

1.对12个S四嗪,包括3个新合成的1,6二氢S四嗪,除草、杀菌、杀虫活性进行筛选。

2.This paper reviews the research and development of phosgene Derivates,including diphenyl ketone,chlorocarbonate,isocya-nate,acyl chloride and carbonates.

2.本文综述光气下游精细化学品的开发及产进展,包括二苯甲酮类、氯代甲类、异类、酰氯类、碳类化合。

3.This article describes property, production and comprehensive manufacturing status of methyl chlorsilane, and the application and market status of derivate.

3.叙述甲基氯硅烷的性质,产及综合加工简况,并简介其品的应用及市场状况。