无受体脱和相关转化在化学合成中的应用
Chidambaram Gunanathan1, David Milstein
1School of Chemical Sciences, National Institute of Science Education and Research, Bhubaneswar 751005, India.
Science (New York, N.Y.)
|July 23, 2013
概括
无受体脱 (AD) 反应通过分裂C-H,N-H和O-H键来产生清洁的燃料,提供了一种绿色化学方法. 本综述涵盖了AD的过渡金属催化及其对合成的影响.
科学领域:
- 有机化学 有机化学
- 催化剂是一种催化剂.
- 绿色化学 绿色化学
背景情况:
- 传统的氧化方法使用石化氧化剂,产生废物.
- 通过避免外部氧化剂,无受体脱 (AD) 提供了一个可持续的替代方案.
研究的目的:
- 审查过渡金属催化无受体脱反应 (AD).
- 突出AD的合成实用性和不断发展的方法.
主要方法:
- 关于催化AD的过渡金属复合物的文献综述.
- 分析涉及可逆脱中间体的相关转化.
主要成果:
- AD反应实现了C-H,N-H和O-H键的催化裂变.
- 释放有价值的气作为清洁燃料.
- 证明高效且无污染的基板激活.
结论:
- AD代表了催化激活和合成的重大进步.
- 审查的方法提供了高效且对环境无害的合成途径.
- 产生的气是一种有价值的清洁能源.
相关概念视频
02:17Reduction of Alkenes: Asymmetric Catalytic Hydrogenation
Catalytic hydrogenation of alkenes is a transition-metal catalyzed reduction of the double bond using molecular hydrogen to give alkanes. The mode of hydrogen addition follows syn stereochemistry.
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
02:44Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide
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02:24Reduction of Alkynes to cis-Alkenes: Catalytic Hydrogenation
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Like alkenes, alkynes can be reduced to alkanes in the presence of transition metal catalysts such as Pt, Pd, or Ni. The reaction involves two sequential syn additions of hydrogen via a cis-alkene intermediate.
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02:13Reduction of Alkenes: Catalytic Hydrogenation
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02:34Preparation of Alkynes: Dehydrohalogenation
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01:28Diels–Alder Reaction Forming Cyclic Products: Stereochemistry
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