在 etudie l'echange selectif des protons 亚甲基 d'un coordinat 甘氨酸 coordine。On montre aussi que la vitesse de l'echange peut etre employee pour produire de la Glyine chirale a n'importe quel degre de purete chirale。Le systeme choisi est [Co((S,S)-proam)(picgly)] + un complexe de Co(III) contenant 2 coordinats tridentes dont l'un contient un reste gcine (proam=亚氨基二甲基-2,2' bis-吡咯烷;picgly=N-吡啶甲酰基甘氨酸)
在 etudie l'echange selectif des protons 亚甲基 d'un coordinat 甘氨酸 coordine。On montre aussi que la vitesse de l'echange peut etre employee pour produire de la Glyine chirale a n'importe quel degre de purete chirale。Le systeme choisi est [Co((S,S)-proam)(picgly)] + un complexe de Co(III) contenant 2 coordinats tridentes dont l'un contient un reste gcine (proam=亚氨基二甲基-2,2' bis-吡咯烷;picgly=N-吡啶甲酰基甘氨酸)
Reaction of N-fluoropyridinium fluoride with isonitriles and TMSN3: a convenient one-pot synthesis of tetrazol-5-yl pyridines
作者:Alexander S. Kiselyov
DOI:10.1016/j.tetlet.2005.05.066
日期:2005.7
Reaction of N-fluoropyridiniumfluoride generated in situ with a series of isonitriles and TMSN3 led to the formation of the corresponding tetrazol-5-yl pyridines in good yields (37–84%). A similar reaction sequence for quinoline yielded the respective derivatives of 2-quinoline. The proposed reaction mechanism involves the intermediate formation of a highly reactive carbene species.
Manganese/cobalt-catalyzed oxidative C(sp<sup>3</sup>)–H/C(sp<sup>3</sup>)–H coupling: a route to α-tertiary β-arylethylamines
作者:Meiling Tan、Kaizhi Li、Jiangliang Yin、Jingsong You
DOI:10.1039/c7cc08512e
日期:——
An oxidative coupling reaction of an α-C(sp3)–H bond of amine with a benzylic C(sp3)–H bond provides diverse collections of α-tertiary β-arylethylamines.
A novel three-component reaction of N-fluoropyridinium salts: a facile approach to imidazo[1,2-a]pyridines
作者:Alexander S. Kiselyov
DOI:10.1016/j.tetlet.2005.04.124
日期:2005.6
The reaction of N-fluoropyridinium triflate with isonitriles in acetonitrile and propionitrile in the presence of NaBH(OAc)3 led to the formation of the corresponding imidazo[1,2-a]pyridines in 44–73% yields. The proposed reaction mechanism involves the intermediate formation of a highly reactive carbene species and apparent reduction of the pyridinium intermediate with NaBH(OAc)3 to yield the targeted
在NaBH(OAc)3存在下,三氟甲磺酸N-氟代吡啶鎓与乙腈和丙腈中的异腈反应,以44-73%的收率形成相应的咪唑并[1,2- a ]吡啶。拟议的反应机理涉及高反应性卡宾物质的中间形成和吡啶鎓中间体与NaBH(OAc)3的明显还原,从而生成目标杂环。
Copper-mediated oxidative C-terminal N-dealkylation of peptide-derived ligands. A possible model for enzymatic generation of desglycine peptide amides
作者:K. Veera Reddy、Shiow Jen Jin、Pramod K. Arora、David S. Sfeir、S. C. Feke Maloney、F. L. Urbach、Lawrence M. Sayre
DOI:10.1021/ja00162a038
日期:1990.3
A number of Cu(II) complexes of peptide derivatives that coordinate via N-deprotonation at the C-terminal amino acid residue have been characterized by titrimetry and the Cu(III)-Cu(II) electrochemical potentials. Reaction of these complexes with persulfate induces oxidative decarboxylation and hydrolysis of the resulting N-acylimines to carboxamide and either HCHO, CH 3 CHO, or acetone depending on
已经通过滴定法和 Cu(III)-Cu(II) 电化学电位表征了许多肽衍生物的 Cu(II) 复合物,它们通过 C 端氨基酸残基的 N-去质子化进行了配位。这些复合物与过硫酸盐的反应会诱导产生的 N-酰基亚胺氧化脱羧和水解为甲酰胺和 HCHO、CH 3 CHO 或丙酮,具体取决于 C 末端残基的身份
Iron-Catalyzed Oxidative Coupling Reaction of N-Acyl Glycine Esters and Malonates
作者:Hui Yu、Zhongyang Liu、Jingbo Lin
DOI:10.1055/s-0035-1562092
日期:——
process is described in this paper. Using DTBP as the oxidant and FeCl 3 ·6H 2 O (20 mol%) as the catalyst, N -2-pyridinecarbonyl glycine esters were coupled with malonates to provide amido acrylates in moderate to good yields. A possible reaction pathway for the formation of the products is also discussed in this paper.