DIRECTEDORTHOLITHIATION OF N-TERT-BUTYLBENZENESULFINAMIDE
摘要:
Introducing the sulfinamide group as a new useful ortho-directing group, we are presenting the synthesis of a series of or tho-substituted N-tert-butylbenzenesulfinamides via directed lithiation of the title compound and subsequent quenching of the dilithiated intermediates with various electrophiles.
Indium-catalyzed annulation of 3-aryl- and 3-heteroarylindoles with propargyl ethers: synthesis and photoluminescent properties of aryl- and heteroaryl[c]carbazoles
Expedient Synthesis of Sulfinamides from Sulfonyl Chlorides
作者:Michael Harmata、Pinguan Zheng、Chaofeng Huang、Maria G. Gomes、Weijiang Ying、Kanok-On Ranyanil、Gayatri Balan、Nathan L. Calkins
DOI:10.1021/jo062296i
日期:2007.1.1
Sulfinamides were synthesized fromsulfonylchlorides using a procedure involving in situ reduction of sulfonylchlorides. The reaction is broad in scope and easy to perform.
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
Oxidation of Primary Alkyl Triflates to the Corresponding Aldehydes via Alkoxy(<i>N</i>-<i>tert</i>-butylamino)(methyl)sulfonium Triflates
Various alkoxy(N-tert-butylamino)(methyl)sulfonium triflates are prepared by selective O-alkylation of N-tert-butylmethanesulfinamide (4c) with primary alkyl trifluoromethanesulfonates (triflates). Successive treatment of thus formed alkoxyaminosulfonium salts with DBU smoothly affords the corresponding aldehydes in good yields. The sequential combination of the two reactions provides a new method for oxidation of primary alkyl triflates to aldehydes, and the present study suggests the existence of alkoxysulfilimines as intermediates of the previously-reported direct oxidation of alcohols by using N-tert-butylphenylsulfinimidoyl chloride (1a) and DBU.
Copper-Catalyzed Oxidative Synthesis of Sulfinamides Using Thiols or Disulfides with Amines
作者:Nobukazu Taniguchi
DOI:10.1002/ejoc.201600091
日期:2016.4
Copper-catalyzedcoupling of thiols with amines was used to synthesize numerous sulfinamides in excellent yields. Sulfenamides or sulfonamides were also formed as reaction byproducts albeit in trace quantities. The procedure is carried out as a one step and was found to be promoted by the addition of water and NH4PF6 under aerobic conditions. Furthermore, the reaction proceeds smoothly when using disulfides