76616-47-2Relevant academic research and scientific papers
Highly efficient KF/Al2O3-catalyzed versatile hetero-Michael addition of nitrogen, oxygen, and sulfur nucleophiles to α,β-ethylenic compounds
Yang, Lei,Xu, Li-Wen,Xia, Chun-Gu
, p. 3279 - 3282 (2005)
The first example of KF/Al2O3-catalyzed versatile hetero-Michael addition reaction of nitrogen, oxygen, and sulfur nucleophiles was developed for facile preparation of organic compounds of widely different structures. In contrast with the existing methods using many acidic catalysts, this method is very general, simple, high-yielding, environmentally friendly, and oxygen and moisture tolerant.
Ligand-Enabled Copper-Catalyzed N-Alkynylation of Sulfonamide with Alkynyl Benziodoxolone: Synthesis of Amino Acid-Derived Ynamide
Takai, Ryogo,Shimbo, Daisuke,Tada, Norihiro,Itoh, Akichika
, p. 4699 - 4713 (2021/04/06)
Ynamides are versatile building blocks in organic synthesis. However, the synthesis of amino acid-derived ynamides is difficult but in high demand. Herein, we disclose the copper-catalyzed Csp-N coupling of sulfonamide, including amino acid and peptide derivatives, to give ynamides by using alkynyl benziodoxolones with broad functional group tolerance under mild reaction conditions. The electron-rich bipyridine as a ligand and ethanol as solvent were used for the success of this reaction. The usefulness of the obtained amino acid-derived ynamide as building block was showcased by further derivatization to unique amino acid derivatives. A control experiment to elucidate the mechanistic insight was also described.
The zeolite ZSM-5-SO3H catalyzed aza-Michael addition of amines and sulfonamides to electron-deficient alkenes under solventfree conditions
Douraki, Saba Mohammadi,Massah, Ahmad Reza
, p. 1346 - 1349 (2015/11/10)
Aza-Micheal addition of aromatic and aliphatic amines and sulfonamides to α,β-unsaturated esters, ketones and nitriles has been developed using the zeolite ZSM-5-SO3H as catalyst under solvent-free conditions.
The zeolite ZSM-5-SO3H catalyzed aza-Michael addition of amines and sulfonamides to electron-deficient alkenes under solvent-free conditions
Douraki, Saba Mohammadi,Massah, Ahmad Reza
, p. 1346 - 1349 (2016/02/26)
Aza-Micheal addition of aromatic and aliphatic amines and sulfonamides to α,β-unsaturated esters, ketones and nitriles has been developed using the zeolite ZSM-5-SO3H as catalyst under solvent-free conditions.
Reduction of 2-acylaziridines by samarium(II) iodide. An efficient and regioselective route to β-amino carbonyl compounds
Molander, Gary A.,Stengel, Peter J.
, p. 8887 - 8912 (2007/10/03)
A convenient method for the reduction of 2-acylaziridines, aziridine-2- carboxylates and aziridine-2-carboxamides is described. The reduction of all of the substrates examined was extremely rapid and highly regioselective, giving rise to β-amino carbonyl compounds. This method appears to be general for all of the classes of aziridines mentioned above, and also tolerates a variety of nitrogen protecting groups.
SYNTHESIS AND REACTION OF 6,7-DIHYDROAZIRINOTHIENOPYRIDIN-8-ONE
Satake, Kyosuke,Kimura, Masaru,Morosawa, Shiro
, p. 1389 - 1390 (2007/10/02)
6,7-Dihydroazirinothienopyridin-8-one (7) was synthesized and its base-catalyzed ring-opening leading to 4,5-dihydro-8H-thienoazepin-8-one (8) was studied.
