1309136-58-0

Upstream product

• 621-84-1 O-benzyl carbamate 
• 99-61-6 3-nitro-benzaldehyde 
• 135-19-3 β-naphthol 

Relevant academic research and scientific papers

Catalytic application of N,2-dibromo-6-chloro-3,4-dihydro-2 H-benzo[e][1,2,4]thiadiazine-7-sulfonamide 1,1-dioxide on the synthesis of 1-carbamato-alkyl-2-naphthols and 1-thioamido-alkyl-2-naphthols

A novel N-bromo sulfonamide reagent, namely N, 2-dibromo-6-chloro-3,4-dihydro-2H-benzo[e][1,2,4]thiadiazine-7-sulfonamide 1,1-dioxide, is prepared and employed as a new and highly efficient catalyst for the preparation of 1-carbamato-alkyl-2-naphthol and 1-thioamido-alkyl-2-naphthol derivatives.

Graphene oxide supported dicationic ionic liquid: an efficient catalyst for the synthesis of 1-carbamatoalkyl-2-naphthols

This article describes the synthesis, characterization, and catalytic application of graphene oxide (GO) supported imidazolium based dicationic ionic liquid (DIL@GO). The DIL@GO was successfully synthesized through stepwise functionalization of GO. The as prepared DIL@GO was characterized by different microscopic and spectroscopic techniques such as XRD, SEM, TEM, TGA, FT-IR, EDX and CHNS analysis. The catalytic efficiency of the DIL@GO was explored for the synthesis of 1-carbamatoalkyl-2-naphthol derivatives through condensation of aromatic aldehydes, alkyl carbamates and 2-naphthol. The influence of catalyst amount and reaction temperature is examined to optimize the performance of catalytic reactions. It is found that DIL@GO offers a highly efficient solvent-free reaction path for the synthesis of 1-carbamatoalkyl-2-naphthols. Based on this, a plausible mechanism for the conversion is proposed. Additionally, the catalyst showed good stability, facile separation and reusability up to five reaction cycles without significant loss of catalytic activity.

Fabrication, identification and application of Fe3O4 bonded nicotinic acid-sulfonic acid chloride as a retrievable magnetic nanostructured catalyst for the one-pot synthesis of 1-carbamato-alkyl-2-naphthols

Abstract: In the presented work, Fe3O4 bonded nicotinic acid-sulfonic acid chloride (Fe3O4@nicotinic acid @sulfonic acid chloride), as a magnetic reusable catalyst, was prepared by a simple procedure. The identi

Synthesis of the first nanomagnetic particles with semicarbazide-based acidic ionic liquid tag: an efficient catalyst for the synthesis of 3,3′-(arylmethylene)bis(4-hydroxycoumarin) and 1-carbamato-alkyl-2-naphthol derivatives under mild and green conditi

Semicarbazide functionalized with chlorosulfonic acid on the surface of silica-coated magnetic nanoparticles, {Fe3O4@SiO2@(CH2)3Semicarbazide-SO3H/HCl}, as a novel magnetic Br?nsted acid ca

Magnetically retrievable magnetite (Fe3O4) immobilized ionic liquid: An efficient catalyst for the preparation of 1-carbamatoalkyl-2-naphthols

A magnetite (Fe3O4) supported -SO3H functionalized benzimidazolium based ionic liquid has been synthesized via covalent grafting of benzimidazole on a (3-chloropropyl)triethoxysilane functionalized magnetic nanoparticle followed by quaternization reaction with 1,4-butane sultone. The obtained magnetic nanoparticle supported ionic liquid (IL@MNP) has been characterized by FT-IR, TGA, TEM, XRD, VSM, EDX and elemental analysis. The performance of the prepared catalyst was evaluated in the preparation of 1-carbamatoalkyl-2-naphthols. The magnetite supported catalyst showed excellent catalytic activity and the corresponding products were obtained in high yields in all the tested cases. The heterogeneous nature of the magnetite favoured easy recovery and recyclability of the catalyst through magnetic decantation making the protocol highly advantageous over conventional procedures.

Preparation of methyl/benzyl(2-hydroxynaphthalen-1-yl)(aryl)methylcarbamate derivatives using magnesium hydrogen sulfate

A new approach to the synthesis of methyl/benzyl(2-hydroxynaphthalen-1-yl) (aryl)methylcarbamate derivatives based on the reaction of aldehydes, 2-naphthol and methyl/benzyl carbamate, using a catalytic amount of magnesium hydrogen sulfate [Mg(HSO4/

Copper chloride-catalyzed efficient three-component one-pot synthesis of carbamatoalkyl naphthols under solvent-free conditions

A highly efficient synthesis of carbamatoalkyl naphthols by a one-pot three-component condensation of 2-naphthol, aldehydes, and methyl/ethyl/benzyl carbamates in the presence of copper chloride under thermal solvent-free conditions has been performed. The suitable solvent, amounts of raw materials and catalyst, and reaction temperature were investigated. Experimental results show that only 1 mol% catalyst was enough to induce the conversion. All new products were characterized by mp, IR, 1H NMR, 13C NMR and mass spectrum. A mechanism to rationalize the reaction was proposed.

Efficient preparation of some new 1-carbamato-alkyl-2-naphthols using N-halo reagents in neutral media

A new and simple procedure for the synthesis of some new 1-carbamato-alkyl-2-naphthol derivatives via one-pot three-component condensation of arylaldehydes, 2-naphthol, and benzylcarbamate in the presence of catalytic amounts of 1,3,5-trichloro-1,3,5-tria

Solvent-free one-pot synthesis of 1-carbamatoalkyl-2-naphthols by a tin tetrachloride catalyzed multicomponent reaction

An efficient one-pot synthesis of 1-carbamatoalkyl-2-naphthols using tin tetrachloride as a catalyst for the three-component condensation reaction of 2-naphthol, aldehydes, and carbamates under thermal, solvent-free conditions is described. This new approach has advantages such as mild conditions, short reaction time, high yield, simple work-up, and an inexpensive catalyst. Graphical Abstract: [Figure not available: see fulltext.]

Synthesis of 1-carbamatoalkyl-2-naphthols in Tween 20 aqueous micelles

A facile and efficient procedure for the preparation of 1-carbamatoalkyl-2-naphthols by a one-pot multi-component reaction of 2-naphthol, aldehydes and carbamates is described. The procedure is carried out under neutral conditions at 75-80 °C in an aqueous medium catalysed by the non-ionic surfactant Tween A loading of 20. 5 wt% of the catalyst was optimal. After the reaction, the catalyst could be simply recovered and reused directly without any further treatment. Product yields were slightly decreased after six cycles. The effect of some common solvents other than water on the reaction was explored besides the water. The generality of this multi-component condensation reaction was evaluated with various aldehydes and carbamates under the optimised conditions.