Convenient and robust synthesis of (perfluoroalkyl)alkanethiols [(CnF2n+1(CH2)mSH); m/n = 3/4,6,8,10, 4a-d; m/n = 2/6, 8; m/n = 1/1,2,3,7,8H, 12a-e] was developed starting from commercially available fluorous alcohols (1a-d, 5, 9a-e). The intermediate (perfluoroalkyl)alkyl iodides and/or sulfonates were reacted with potassium thioacetate in DMF, and the resulting thioacetates were deacetylated by
(全氟烷基)烷硫醇[(C n F 2n + 1(CH 2)m SH); 米/ Ñ = 3 / 4,6,8,10,4A - d ; m / n = 2/ 6,8 ; M / N = 1 / 1,2,3,7,8H,12A - ë ]被开发由市售氟醇(起始1A - d,5,图9a - ë)。使中间体(全氟烷基)烷基碘化物和/或磺酸盐与硫代乙酸钾在DMF中反应,然后通过Zemplén类似反应使所得的硫代乙酸酯脱乙酰。以良好的总收率和高纯度获得了(全氟烷基)链烷硫醇。
[EN] REAGENTS FOR THE POLYFLUOROALKYLTHIOLATION OF ORGANIC COMPOUNDS AND METHOD FOR PRODUCTION THEREOF<br/>[FR] RÉACTIFS POUR POLYFLUOROALKYLTHIOLATION DE COMPOSÉS ORGANIQUES ET PROCÉDÉ DE PRODUCTION ASSOCIÉ
申请人:UNIV ROVIRA I VIRGILI
公开号:WO2022008283A1
公开(公告)日:2022-01-13
The present invention to a group of compounds of formula (I) useful for the transfer of polyfluoroalkylthiol groups of at least two carbons atoms into a great variety of organic compounds as well as to the process for their preparation. The invention is also directed to the method for the polyfluoroalkylthiolation of an organic compound with the reagents of the invention.
and biology, cation–π interactions contribute significantly to many important transformations. In sharp contrast, reactions accomplished with support from the complementary anion–πinteractions are essentially unknown. In this report, we show that anion–πinteractions can determine the selectivity of the enolate chemistry of malonate half thioesters. Their addition to enolate acceptors is central in
reagents were developed for the direct introduction of SCH2CF3 and SCH2CF2H motifs via a C−S bond forming reaction. Their large-scale preparation and reactivity performance has been carefully examined, enabling access to a series of indoles through open-flask reactions. Sulfone and sulfoxide analogs (S(O)nCH2RF, n=1,2) are also accessible by sequential oxidation reactions.
开发了两种基于糖精的亲电子试剂,用于通过C−S 键形成反应直接引入 SCH 2 CF 3和 SCH 2 CF 2 H 基序。它们的大规模制备和反应性能经过仔细检查,能够通过开瓶反应获得一系列吲哚。砜和亚砜类似物(S(O) n CH 2 R F , n=1,2)也可以通过连续氧化反应获得。
Nonlinear structure-reactivity correlations. Acyl transfer between sulfur and oxygen nucleophiles