Sep 23, 2019
The traceless Petasis borono-Mannich reaction of enals, sulfonylhydrazines, and allylboronates catalyzed by chiral biphenols results in an asymmetric reductive transposition of the in situ Petasis reaction Petasis reaction The Petasis reaction is the chemical reaction of an amine , aldehyde , and vinyl - or aryl - boronic acid to form substituted amines. [ cite journal | author = Petasis, N. A.; Akritopoulou, I. | journal = Tetrahedron Lett. SAMDI Mass Spectrometry-Enabled High-Throughput SAMDI Mass Spectrometry-Enabled High-Throughput Optimization of a Traceless Petasis Reaction Authors: Diagne AB, Li S, Perkowski GA, Mrksich M, Thomson RJ ACS Comb Sci., 2015 Nov 9;17(11):658-62 View Resource Petasis Olefination Page The reaction was driven to completion after the temperature was elevated. However, under microwave conditions, the reaction was driven to completion in only thrity minutes. When the Petasis reagent was subjected to less reactive substrates (R1, R2, R3), reactivity and reaction rate increased when under microwave conditions.
The Petasis reaction is an extremely useful transformation, in which an aryl, alkenyl, or alkynyl organoboronate is condensed with amines and aldehydes to give a branched alkyl amine [72,73,74]. The Schaus group disclosed an asymmetric Petasis reaction catalyzed by ( S )-VAPOL 5 to offer α-amino esters 89 in good yield and high enantiomeric
The proposed reaction mechanism is believed to proceed in an analogous manner to the Petasis–Mannich reaction, as outlined above . This In conclusion, we have demonstrated the novel reaction of NIs with aryl boronic acids in a traceless, light-activated procedure. This transformation has been shown to be highly general, furnishing over 25 Traceless synonyms, Traceless antonyms - FreeThesaurus.com Synonyms for Traceless in Free Thesaurus. Antonyms for Traceless. 113 synonyms for trace: search for, follow, seek out, track, determine, pursue, unearth, ascertain
European Journal of Organic Chemistry: Vol 2020, No 24
SAMDI Mass Spectrometry-Enabled High-Throughput Nov 09, 2015 A multitasking functional group leads to structural
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