可逆形成的CN键在动态共价化学中起着非常重要的作用,并且在不同亚胺成分之间组分的CN/ C exchangeN交换以创建动态共价文库已被广泛使用。为了促进多样性的产生,我们研究了一种有机催化方法,使用L-脯氨酸作为催化剂,以加速[ n × n ]亚胺组分动态库的形成。在某些条件下,有机催化方法也已扩展到巴比妥酸的Knoevenagel衍生物和亚胺之间的可逆CC/CN交换过程,从而增加了多样性。
An Improved and Stereoselective Route to All-cis-2,6-Disubstituted 4-Hydroxypiperidines from Accessible 4-Substituted 4-N-Benzylaminobut-1-enes
作者:Alexey Varlamov、Vladimir Kouznetsov、Fedor Zubkov、Alexey Chernyshev、Olga Shurupova、Leonor Y. Vargas Méndez、Alirio Palma Rodríguez、Juliette Rivero Castro、Alfredo J. Rosas-Romero
DOI:10.1055/s-2002-25770
日期:——
The reaction between allylmagnesium bromide and imines 5a-l leads to the corresponding 4-substituted 4- N-benzy- laminobut-1-enes 6a-l, which were oxidized in a regioselective manner to the alkenylnitrones 7a-l. The intramolecular 1,3-dipolar cycloaddition of these nitrones gave 2-spiroannulated or 2-substi- tuted 6-exo-phenyl-1-aza-7-oxabicyclo(2.2.1)heptanes 8a-j. Re- ductive cleavage of the N-O
In vitro antifungal activity of new series of homoallylamines and related compounds with inhibitory properties of the synthesis of fungal cell wall polymers
作者:Leonor Y Vargas M、Marı́a V Castelli、Vladimir V Kouznetsov、Juan M Urbina G、Silvia N López、Maximiliano Sortino、Ricardo D Enriz、Juan C Ribas、Susana Zacchino
DOI:10.1016/s0968-0896(02)00605-3
日期:2003.4
in vitro antifungal evaluation and SAR studies of 101 compounds of the 4-aryl-, 4-alkyl-, 4-pyridyl or -quinolinyl-4-N-arylamino-1-butenes series and relatedcompounds, are reported here. Active structures showed to inhibit (1,3)-beta-D-glucan and mainly chitin synthases, enzymes that catalyze the synthesis of the major fungal cell wall polymers.
reversibly formed CN bond plays a very important role in dynamic covalent chemistry and the CN/CN exchange of components between different imine constituents to create dynamic covalent libraries has been extensively used. To facilitate diversity generation, we have investigated an organocatalyzed approach, using L‐proline as catalyst, to accelerate the formation of dynamic libraries of [n×n] imine components
可逆形成的CN键在动态共价化学中起着非常重要的作用,并且在不同亚胺成分之间组分的CN/ C exchangeN交换以创建动态共价文库已被广泛使用。为了促进多样性的产生,我们研究了一种有机催化方法,使用L-脯氨酸作为催化剂,以加速[ n × n ]亚胺组分动态库的形成。在某些条件下,有机催化方法也已扩展到巴比妥酸的Knoevenagel衍生物和亚胺之间的可逆CC/CN交换过程,从而增加了多样性。
Indium mediated Barbier-type allylation of aldimines in alcoholic solvents
Barbier-type allylation of unactivated aldimines with allyl bromides in the presence of indium powder took place rapidly in alcoholic solvents to give homoallylic amines in fair to good yields.
A photoelectrochemical strategy for synthesizing imines efficiently is introduced, including both symmetric and unsymmetric imines. Of note, the method is successfully applied to perform the cross-coupling of N-terminal phenylalanine residues, highlighting its potential in chemical biology applications. This strategy presents a convenient platform for imine synthesis with broad implications in drug
介绍了有效合成亚胺的光电化学策略,包括对称和不对称亚胺。值得注意的是,该方法成功应用于 N 末端苯丙氨酸残基的交叉偶联,凸显了其在化学生物学应用中的潜力。该策略为亚胺合成提供了一个方便的平台,对药物开发和有机合成具有广泛的影响。