Thiocyanation of anilines
WebWhen serving as a metal-free photocatalyst for an undocumented visible-light-driven thiocyanation of anilines, CMP-1 exhibits excellent photocatalytic performance, with single chemoselectivity and high yields for the conversion of 25 types of anilines at ambient conditions. This study fills in the gap of the tubular morphological engineering of ... WebFeb 5, 2012 · Highly efficient regioselective thiocyanations of indoles and N,N- disubstituted anilines are achieved via a green and simple protocol using Silica Boron Sulfonic Acid (SBSA) as a new catalyst, KSCN and hydrogen peroxide as a mild and environmentally friendly oxidant in aqueous condition. ... The thiocyanation was investigated in various ...
Thiocyanation of anilines
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WebHerein, we described a practical and efficient one-pot oxidative trifluoromethylthiolation of amines. A panel of primary and secondary amines was functionalized in good yields at room temperature. This general approach was further applied to the thiocyanation of anilines and the corresponding products can be readily used as SCN electrophilic ... WebAn efficient ultrasound-promoted thiocyanation of phenols, indoles, and anilines in the presence of N-chlorosuccinimide and NH 4 SCN using 1,1,1,3,3,3-hexafluoro-2-propanol as …
Webthiocyanation of indoels, pyrroles, anilines and also indolines. This report is one of the two papers which thiocyanated indoline successfully 34. Reaction of (dichloroiodo)benzene/NH 4SCN or Zn(SCN) 2 was used for thiocyanation of anilines 35. Poly(4-diacetoxyiodo)styrene (PDAIS)/NH 4SCN 36 was also used for thiocyanation of indoles and anilines. WebAug 14, 2024 · A highly efficient and general method for the direct Csp 2 −H radical thiocyanation of free anilines was developed under transition-metal-free conditions, …
WebDec 12, 2024 · Anilines substituted at C-4 were employed to complete the scope investigation (Table 2). As expected, the C-2 thiocyanation product underwent an in situ cyclization through an attack of the −NH 2 group onto −SCN generating 1,3 … WebBased on these principles, imide-based COFs with large-pores and enhanced stability were synthesized by the combination of several trigonal anilines with ditopic pyromellitic dianhydride. The base-catalyzed nucleophilic aromatic substitution reaction between polyfluorinated-activated aromatic compounds and catechol-like alcohols allowed to ...
WebMar 1, 2012 · The thiocyanation reaction of various electron rich arenes such as anilines, indoles, phenols, and other aromatic compounds were selected to show the catalytic …
http://www.e-journals.in/PDF/V2N3/691-700.pdf kyle\\u0027s shoes sun city west azWebAn efficient and solvent-free approach for the regioselective thiocyanation of various substituted anilines and indoles was designed and the synthesis of the target compds. [i.e., thiocyanic acid 4-aminophenyl ester derivs., thiocyanic acid 1H-indol-3-yl ester derivs.] was achieved under microwave-mediated reaction conditions (green chem.). programme chris bumsteadWebDec 23, 2011 · Abstract. Highly efficient regioselective thiocyanations of indoles and N,N-disubstituted anilines are achieved via a green and simple protocol using boron sulfonic acid (BSA) as a new catalyst and KSCN/H 2 O 2 as a mild and environmentally friendly oxidant in aqueous media.. 1. Introduction. The electrophilic thiocyanation of aromatics and … programme clean 9WebThe thiocyanation reaction of various electron rich arenes such as anilines, indoles, phenols, and other aromatic compounds were selected to show the catalytic performance and efficiency of the as-prepared solid acid catalyst, and excellent yields of the corresponding aryl and heteroaryl thiocyanates derivatives were obtained under metal-free ... programme cm biathlonWebAug 14, 2024 · In the presence of tert ‐butyA highly efficient general method for the transition‐metal‐free, direct Csp 2 –H radical thiocyanation of free anilines was … programme cm2 maths eduscolWebApr 9, 2024 · The first homogeneous and heterogeneous nanoparticle gold-catalyzed addition of sulfur nucleophiles to alkynes was developed. More specifically, gold-catalyzed hydrothiocyanation of haloalkynes gave good yields and good stereoselectivity of vinyl thiocyanates. Furthermore, a sulfur-based gold catalyst (PPh3AuSCN) has shown a … kyle\u0027s american kitchenWebA convenient and practical thiocyanation of pyrazoles is reported employing a combination of KSCN and K2S2O8 in dimethyl sulfoxide (DMSO). The salient features of the present reaction include environmentally benign reagents and solvents, and simple kyle\u0027s ace hardware