
Triflate Group - an overview | ScienceDirect Topics
The triflate group refers to a chemical group that is commonly used in synthetic organic chemistry as a leaving group due to its high effectiveness. It is known for its thermal stability and electron-withdrawing properties, making it widely used in various applications in modern organic chemistry.
Triflate - an overview | ScienceDirect Topics
Jul 7, 2011 · One triflate in molybdenum imido alkylidene NHC bistriflate complexes can be replaced by tetraphenylborate (BPh4−), tetrakis (3,5-trifluoromethylphenyl) borate (BAr F4−), or tetrakis (nonafluoro- tert -butoxy) aluminate (Al (pftb) 4−) through addition of an alkali metal, silver, or thallium salt of the anion (Eq. 83). 30,47,194,197,201,203 Substitution typically proceeds in …
Trifluoromethanesulfonate (triflate) as a moderately coordinating …
Jan 1, 2007 · Trifluoromethanesulfonate (triflate; CF 3 SO 3 -; TfO −) has long been believed as a classical “non-coordinating” anion, and in fact, many transition metal triflates act as a cationic coordinatively unsaturated species, which allow facile coordination of other auxiliary ligands such as water, pyridine, and phosphines to result in throwing ...
Vinyl triflates derived from 1,3-dicarbonyl compounds and analogs ...
Sep 9, 2012 · This review details the current methods used to prepare vinyl triflates derived from 1,3-dicarbonyl compounds and describes the reactivity of such fun…
Trimethysilyl triflate in organic synthesis - ScienceDirect
Jan 1, 1981 · Trimethylsilyl triflate is a powerful silylating agent for organic compounds and acts as a catalyst which accelerates a variety of nucleophilic reactions in aprotic media. The reactions proceed via one-center, electrophilic coordination of the silyl group to hetero functional groups and exhibit unique selectivities.
Iron(III) triflate, a new efficient catalyst for Type I Ferrier ...
Jul 8, 2012 · We have demonstrated that iron (III) triflate was a new efficient catalyst for Type I Ferrier Rearrangement. By use of this catalyst, a series of alcohols was reacted with glucal donor affording 2,3-unsaturated O -glycosides in high yield and …
Recent trends in the chemistry of triflamides - ScienceDirect
Oct 30, 2023 · The triflate group at nitrogen imparts stability to an otherwise unstable amine, amide, or sulfonamide derivatives of different type. The review summarizes recent trends in the chemistry of triflamides focusing on synthetic aspects, and outlines milestones and challenges for future investigations.
An efficient new method of ytterbium(III) triflate catalysis approach ...
Oct 1, 2023 · In conclusion, we have developed a novel and useful method by using a ytterbium (III) triflate synthesis strategy to pyrrolidine derivatives from ketoximes bearing different substituted for the synthesis of pyrrole derivatives with medicinal applications as an alternative to current synthetic methods.
Recent Advances in Scandium(III) Triflate Catalysis: A Review
Among these, rare‐earth triflates have garnered attention due to their water compatibility, environmental friendliness, noncorrosive nature, and reusability. In particular, scandium (III) triflate [Sc (OTf) 3] stands out as a water‐resistant Lewis acid with remarkable catalytic activity in aqueous environments.
Chemical Transformations Induced by Triflic Anhydride
May 12, 2000 · The reaction of triflic anhydride with carbonyl compounds consists of the electrophilic attack of the anhydride on the carbonyl oxygen, resulting in the formation of the trifloxycarbenium ion. Depending on the nature of the carbonyl compounds and the reaction conditions, this cation can undergo several synthetic transformations, namely: 1) proton …