提出了将苯酚方便地转化为相应的氟代芳基硫酸盐的方法:完全规避直接处理气态硫酰氟(SO 2 F 2)的第一种方法。所提出的方法使用1,1'-磺酰亚胺基咪唑作为前体,通过两腔反应器生成接近化学计量的SO 2 F 2气体。通过NMR研究表明,这种非原位气体的释放非常迅速,并且以良好的收率和良好的收率对各种酚和羟基化的杂芳烃进行了氟代硫酸化。
that the antimicrobial activity depends upon the presence of –OSO2F group and slender effect of different substituent’s on the phenyl rings. The electron donating (OCH3) groups in analogs increase the antibacterial activity, and interestingly the electron withdrawing (Cl, NO2, F and Br) groups increase the antifungal activity (except compound 35, 36 and 37). The mechanism of potent compounds showed membrane
Synthesis of <i>N</i>-Acyl Sulfamates from Fluorosulfates and Amides
作者:Philippe Gilles、Cedrick Veryser、Sarah Vangrunderbeeck、Sam Ceusters、Luc Van Meervelt、Wim M. De Borggraeve
DOI:10.1021/acs.joc.8b02785
日期:2019.1.18
A novel synthetic strategy toward N-acyl sulfamates was developed. Interestingly, fluorosulfates, a new emerging class of electrophiles, were used to construct the sulfamate core. This precludes handling of chlorosulfonyl isocyanate and sulfamoyl chloride. In combination with amides, a wide and diverse set of N-acyl sulfamates was synthesized, including functionalized bioactive compounds. Furthermore
A study of the reactivity of S<sup>(VI)</sup>–F containing warheads with nucleophilic amino-acid side chains under physiological conditions
作者:H. Mukherjee、J. Debreczeni、J. Breed、S. Tentarelli、B. Aquila、J. E. Dowling、A. Whitty、N. P. Grimster
DOI:10.1039/c7ob02028g
日期:——
Despite numerous examples of the successful deployment of SFs as covalent probe compounds, a detailed exploration of the factors influencing the stability and reactivity of SFs has not yet appeared. In this work we present an extensive study on the influence of steric and electronic factors on the reactivity and stability of the SF and related SVI–F groups. While SFs react rapidly with N-acetylcysteine
磺酰氟(SFs)最近已成为有希望的针对蛋白质的目标共价修饰的战斗部。尽管有许多成功地将SFs用作共价探针化合物的例子,但尚未出现对影响SFs稳定性和反应性的因素的详细探讨。在这项工作中,我们对空间和电子因素对SF和相关的S VI –F组的反应性和稳定性的影响进行了广泛的研究。尽管SF与N-乙酰半胱氨酸快速反应,但发现生成的加合物不稳定,因此SF不适合持久地共价抑制半胱氨酸残基。相反,SFs可以与N-乙酰酪氨酸和N一起提供稳定的加合物。-乙酰赖氨酸;此外,我们表明,可以通过调节弹头的电子特性来预测地调节芳基磺酰氟对这些亲核氨基酸的反应性。当共价反应发生在蛋白质结合口袋中时,这些趋势在很大程度上得以保留。我们还获得了描述ATP类似物5'- O -3-((氟磺酰基)苯甲酰基)腺苷(m-FSBA)。已证明高反应性战斗部在缓冲水溶液中的水解方面不稳定,这表明战斗部的反应性必须仔细调整以提供最佳的蛋白
<i>Ex Situ</i> Generation of Sulfuryl Fluoride for the Synthesis of Aryl Fluorosulfates
作者:Cedrick Veryser、Joachim Demaerel、Vidmantas Bieliu̅nas、Philippe Gilles、Wim M. De Borggraeve
DOI:10.1021/acs.orglett.7b02522
日期:2017.10.6
A convenient transformation of phenols into the corresponding aryl fluorosulfates is presented: the first protocol to completely circumvent direct handling of gaseous sulfuryl fluoride (SO2F2). The proposed method employs 1,1′-sulfonyldiimidazole as a precursor to generate near-stoichiometric amounts of SO2F2 gas using a two-chamber reactor. With NMR studies, it was shown that this ex situ gas evolution
提出了将苯酚方便地转化为相应的氟代芳基硫酸盐的方法:完全规避直接处理气态硫酰氟(SO 2 F 2)的第一种方法。所提出的方法使用1,1'-磺酰亚胺基咪唑作为前体,通过两腔反应器生成接近化学计量的SO 2 F 2气体。通过NMR研究表明,这种非原位气体的释放非常迅速,并且以良好的收率和良好的收率对各种酚和羟基化的杂芳烃进行了氟代硫酸化。
[EN] METHOD FOR COUPLING AN AROMATIC COMPOUND TO AN ALKYNE<br/>[FR] PROCÉDÉ DE COUPLAGE D'UN COMPOSÉ AROMATIQUE À UN ALCYNE
申请人:DOW GLOBAL TECHNOLOGIES LLC
公开号:WO2017030971A1
公开(公告)日:2017-02-23
In one aspect, there is provided a method of coupling an aromatic compound having a fluorosulfonate substituent to an alkyne. In another aspect, there is provided a method of coupling an aromatic compound having a hydroxyl substituent to an alkyne in a one-pot reaction.