18271-18-6

Usage

InChI:InChI=1/C17H15NO2S/c1-13-6-10-17(11-7-13)21(19,20)18-16-9-8-14-4-2-3-5-15(14)12-16/h2-12,18H,1H3

Upstream product

• 4083-64-1 Tosyl isocyanate 
• 32316-92-0 naphthalene-2-boronic acid 
• 127-65-1 chloroamine-T 
• 21849-40-1 dibromamine-T 
• 941-55-9 4-toluenesulfonyl azide 
• 91-59-8 naphthalen-2-ylamine 
• 581-89-5 2-nitronaphthalene 
• 675129-36-9 C₁₀H₉N(SO₂C₇H₆)2 
• 133-59-5 Toluene-2-sulfonyl chloride 
• 98-59-9 p-toluenesulfonyl chloride 
• 3857-83-8 2-naphthyl triflate 
• 70-55-3 toluene-4-sulfonamide 
• 580-13-2 2-bromonaphthalene 

Downstream Products

• 858841-74-4 N-(1-chloro-[2]naphthyl)-toluene-4-sulfonamide 
• 18271-20-0 N,4-dimethyl-N-(naphthalen-2-yl)benzenesulfonamide 
• 19485-85-9 N-Methyl-2-amino-1,2,3,4-tetrahydronaphthalene 
• 36794-05-5 N-(1-amino-[2]naphthyl)-N-methyl-toluene-4-sulfonamide 
• 93328-39-3 N-(3-bromo-1-chloro-[2]naphthyl)-toluene-4-sulfonamide 
• 861518-31-2 N-methyl-N-(1-nitro-[2]naphthyl)-toluene-4-sulfonamide 
• 325956-47-6 3-bromo-1-chloronaphthalene 
• 54288-95-8 1,3-dibromonaphthalen-2-amine 

Relevant academic research and scientific papers

Modular Two-Step Access to π-Extended Naphthyridine Systems—Potent Building Blocks for Organic Electronics

Efficient synthetic approaches for the incorporation of nitrogen into polyaromatic compounds (PACs) in different patterns as stabilising moiety for π-extended systems and modification tool for optoelectronic properties remain a challenge until today. Here

Corrigendum to “Transition-metal-free synthesis of aromatic amines via the reaction of benzynes with isocyanates” [Tetrahedron Lett. 59 (2018) 671–674](S0040403918300352)(10.1016/j.tetlet.2018.01.022)

The authors regret that the structure of Scheme 3 is shown incorrectly. The structure of the compound 3e' is shown correctly here.[Figure presented] The penultimate paragraph of the “Results and Discussion” section should read as follows: During the investigation of several substrates, we observed the unexpected product 3e' which had a diphenyl backbone with a tosyl amine in 45% yield (Scheme 3). This structure was confirmed by 1H NMR, 13C NMR, and high-resolution mass spectroscopy. The diphenyl scaffold is useful to develop new ligands, or synthesize materials, pharmaceuticals, and natural products.The Authors also note corrections needed to the data of compound 3j in the Supplementary Data files. This should be re-written as follows: 13C NMR (125 MHz, CDCl3) δ 150.4 (dd, 1C, JC–F = 242.8, 8.2 Hz), 148.3 (dd, 1C, JC–F = 240.6, 7.3 Hz), 144.4, 135.6, 133.0 (dd, 1C JC–F = 8.1, 3.3 Hz), 129.9, 127.3, 118.1 (q, 1C, JC-F = 3.3 Hz), 117.8 (dd, 1C, JC–F = 18.2, 1.3 Hz), 111.8 (d, 1C, JC–F = 20.3 Hz), 21.6.The updated Supplementary Data files have been published online with this Corrigendum. The authors would like to apologise for any inconvenience caused.

Transition-metal-free synthesis of aromatic amines via the reaction of benzynes with isocyanates

An unexpected reaction between benzynes and isocyanates to generate aromatic amines has been developed under transition-metal-free conditions. The in situ prepared anions formed through cleavage of the N–C bond in isocyanates, reacted with aryne precursor

Synthesis of N -Arylsulfonamides by a Copper-Catalyzed Reaction of Chloramine-T and Arylboronic Acids at Room Temperature

A copper-catalyzed Chan-Lam-coupling-like reaction of a (het)arylboronic acid and chloramine-T (or a related compound) has been developed for the synthesis of N -arylsulfonamides at room temperature in moderate to good yields, with good tolerance of functional groups. In this process, it is believed that chloramine-T serves as an electrophile.

Palladium-Catalyzed Regioselective Synthesis of 3-Arylindoles from N-Ts-Anilines and Styrenes

A Pd-catalyzed intermolecular oxidative annulation between N-Ts-anilines and styrenes was developed. This method offers a straightforward and robust approach to a wide range of 3-arylindoles using readily available starting materials with good functional-group tolerance and high regioselectivity and efficiency. Further elaboration of the products obtained from this process provided access to highly functionalized and structurally diverse indoles, for example, 3-(indol-3-yl)carbazoles, 1,9-dihydropyrrolo-[2,3-b]carbazoles, and 3′-aryl-3,5′-biindoles.

CuI catalyzed sulfamidation of arylboronic acid using TsNBr2 at room temperature

An expeditious protocol for amidation arylboronic acid has been developed using TsNBr2 as the nitrogen source in presence of a CuI as catalyst. Various arylboronic acids could be transformed into corresponding N-arylsulfonamide derivatives within a very short time using CuI as catalyst in presence of DBU at room temperature.

Metal-free synthesis of 2-aminonaphthalenes by intramolecular transannulation of 1-sulfonyl-4-(2-alkenylphenyl)-1,2,3-triazoles

A facile metal-free synthesis of naphthalenes by intramolecular transannulation of 1-sulfonyl-4-(2-alkenylphenyl)-1,2,3-triazoles was realized. The in situ formed ketenimine was proposed as the key intermediate, and the desired 2-aminonaphthalenes were generated in up to 87% yield in refluxing 1,2-dichloroethane without any catalyst or additive.

Palladium nanoparticles as reusable catalyst for the synthesis of N-aryl sulfonamides under mild reaction conditions

An efficient palladium nanoparticles-catalyzed N-arylation of sulfonamides and sulfonyl azides is described. This procedure serves as an active protocol for intermolecular C-N bond formation using Pd(OAc)2 in PEG-400 under air. Aryl bromides and triflates react at 35°C, while aryl chlorides require heating to 50°C and give the desired products only in low yields. This reaction proceeds smoothly in acceptable yields using low catalyst loading.

A highly efficient heterogeneous copper-catalyzed Chan-Lam coupling reaction of sulfonyl azides with arylboronic acids leading to: N -arylsulfonamides

A heterogeneous Chan-Lam coupling reaction between sulfonyl azides and arylboronic acids was achieved in MeOH at room temperature in the presence of 10 mol% of an l-proline-functionalized MCM-41-immobilized copper(i) complex [MCM-41-l-proline-CuCl] under air, yielding a variety of N-arylsulfonamides in excellent yields. The new heterogeneous copper complex can be prepared from commercially readily available and inexpensive reagents, and recovered by simple filtration of the reaction solution and recycled at least 8 times without any decreases in activity.

A convenient and benign synthesis of sulphonamides in PEG-400

A simple and convenient method is reported for the synthesis of a series of sulphonamides in PEG-400 using potassium carbonate as the base. The reaction is carried out in a heterogeneous medium and consequently product recovery is simple. The desired products with a variety of aromatic amines could be synthesized in a short reaction time in good yield. The PEG could be recovered for reuse.