一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

ChemicalBook >> journal list >> Synthesis-Stuttgart >>article
Synthesis-Stuttgart

Synthesis-Stuttgart

IF: 2.2
Download PDF

Triflic Anhydride (Tf2O)-Activated Transformations of Amides, Sulfoxides and Phosphorus Oxides via Nucleophilic Trapping

Published:27 October 2021 DOI: 10.1055/a-1679-8205
Hai Huang,?J. Kang

Abstract

Abstract Trifluoromethanesulfonic anhydride (Tf2O) is utilized as a strong electrophilic activator in a wide range of applications in synthetic organic chemistry, leading to the transient generation of a triflate intermediate. This versatile triflate intermediate undergoes nucleophilic trapping with diverse nucleophiles to yield novel compounds. In this review, we describe the features and applications of triflic anhydride in organic synthesis reported in the past decade, especially in amide, sulfoxide, and phosphorus oxide chemistry through electrophilic activation. A plausible mechanistic pathway for each important reaction is also discussed. 1 Introduction 2 Amide Chemistry 2.1 Carbon Nucleophiles 2.2 Hydrogen Nucleophiles 2.3 Nitrogen Nucleophiles 2.4 Oxygen and Sulfur Nucleophiles 2.5 hosphorus Nucleophiles 2.6 A Vilsmeier-Type Reagent 2.7 Umpolung Reactivity in Amides 3 Sulfoxide Chemistry 3.1 Oxygen Nucleophiles 3.2 Carbon Nucleophiles 3.3 Nitrogen Nucleophiles 3.4 Thionium Reagents 4 Phosphorus Chemistry 4.1 Hendrickson’s Reagent 4.2 Diaryl Phosphine Oxides 4.3 Phosphonates, Phosphates and Phosphinates 5 Conclusion and Outlook

Substances (1)

Related products
Procduct Name CAS Molecular Formula Supplier Price
Trifluoromethanesulfonic anhydride 358-23-6 C2F6O5S2 763 suppliers $7.62-$6920.07

Similar articles

IF:1.9

Triflic Anhydride (Tf2O): An Efficient Catalyst for Electrophilic Activation of Amides

ChemistrySelect Zahra Tashrifi, Mohammad Mohammadi-Khanaposhtani,etc Published: 7 June 2021
IF:5.8

Progress in the preparation of phosphorus-containing polymers via phosphorus trichloride-free routes

European Polymer Journal Yu-Lin Hong , Yun Liu ,etc Published: 17 August 2023
长兴县| 民和| 刚察县| 万年县| 伊川县| 潜山县| 乌拉特后旗| 胶州市| 辽源市| 白银市| 揭西县| 乐安县| 和政县| 丰城市| 南江县| 额济纳旗| 雷州市| 沂南县| 临泽县| 阳信县| 扶风县| 福安市| 江西省| 金溪县| 淮北市| 吉安县| 莱州市| 葫芦岛市| 遂川县| 双鸭山市| 达拉特旗| 沁源县| 子长县| 贵港市| 安福县| 辽阳县| 沙田区| 庆云县| 疏勒县| 莱阳市| 曲水县|