Zobrazeno 1 - 10
of 274
pro vyhledávání: '"acyl azide"'
Publikováno v:
Molecules, Vol 27, Iss 5, p 1696 (2022)
In this study, we describe the synthesis of cyclic N-acyl amidines from readily available N-heteroarenes. The synthetic methodology utilized the versatile N-silyl enamine intermediates from the hydrosilylation of N-heteroarenes for the [3 + 2] cycloa
Externí odkaz:
https://doaj.org/article/f3165f8c2ef343128f81ba347737c2f8
Publikováno v:
Organic Letters. 23:7571-7574
An atom-economic N-to-C-directed solid-phase peptide synthesis is reported that uses benzyl (Bn) or (benzhydryl-carbamoyl)-methyl (BcM) esters of amino acids as the building blocks, which facilitate efficient hydrazinolysis, convenient conversion to
Publikováno v:
ACS Sustainable Chemistry & Engineering. 9:8679-8685
Publikováno v:
Organic Letters. 23:974-978
A palladium-catalyzed three-component carbonylative reaction for the synthesis of 3H-1,2,4-triazol-3-ones from hydrazonoyl chlorides and NaN3 has been achieved. The reaction presumably proceeds through a cascade carbonylation, acyl azide formation, C
Autor:
Heba A Elhady, Hossa F. Al-Shareef
Publikováno v:
Mini-Reviews in Medicinal Chemistry. 20:1929-1941
Background and Objective: Due to the well-documented anti-proliferative activity of 2-thiohydantoin incorporated with pyrazole, oxadiazole, quinazoline, urea, β-naphthyl carbamate and Schiff bases, they are noteworthy in pharmaceutical chemistry. Me
Publikováno v:
Chemistry – A European Journal. 26:13378-13382
The first divergent synthesis of both γ-amino acid and γ-lactam derivatives from meso-glutaric anhydrides is described. The organocatalytic desymmetrisation with TMSN3 relies on controlled generation of a nucleophilic ammonium azide species mediate
Publikováno v:
European Journal of Organic Chemistry. 2020:3847-3855
Publikováno v:
Organic Process Research & Development. 24:2342-2346
Diisocyanates used in polyurethanes are commonly prepared by phosgenation of petroleum-sourced diamines. This involves highly toxic phosgene and produces corrosive HCl, limiting synthetic applicati...
Autor:
Sangil Han, Saegun Kim, Sang Hoon Han, Neeraj Kumar Mishra, Na Yeon Kwon, DongEun Kim, In Su Kim, Prithwish Ghosh
Publikováno v:
The Journal of Organic Chemistry. 85:2476-2485
A transition-metal-free deoxygenative C-H amination reaction of azine-N-oxides with acyl azides is described. The initial formation of an isocyanate from the starting acyl azide via a Curtius rearrangement can trigger a [3 + 2] dipolar cycloaddition
Publikováno v:
Reaction Chemistry & Engineering. 5:645-650
The development of new protocols for peptide bond formation which avoid side reactions, including epimerization, are very important. The acyl azide method for the preparation of peptides is very good at maintaining chiral integrity, however; acyl azi