,

Feng Hao1, Wenxuan Wu1, Kaida Li1

  • 1Key Laboratory of Medicinal Chemistry for Natural Resource, Yunnan Characteristic Plant Extraction Laboratory, Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Pharmacy, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China.

概括

新型硫化合物对关键的虫虫害有强大的杀虫活性,为传统农药提供了更安全的替代品. 化合物W-27和W-29显示出卓越的疗效,为新的农业化学开发铺平了道路.

相关概念视频

Preparation and Reactions of Sulfides02:26

Preparation and Reactions of Sulfides

Sulfides are the sulfur analog of ethers, just as thiols are the sulfur analog of alcohol. Like ethers, sulfides also consist of two hydrocarbon groups bonded to the central sulfur atom. Depending upon the type of groups present, sulfides can be symmetrical or asymmetrical. Symmetrical sulfides can be prepared via an SN2 reaction between 2 equivalents of an alkyl halide and one equivalent of sodium sulfide.
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Electrophilic Aromatic Substitution: Sulfonation of Benzene

Sulfonation of benzene is a reaction wherein benzene is treated with fuming sulfuric acid at room temperature to produce benzenesulfonic acid. Fuming sulfuric acid is a mixture of sulfur trioxide and concentrated sulfuric acid.
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