374690-61-6Relevant articles and documents
An efficient, multicomponent synthesis of aminoalkylnaphthols via Betti reaction using ZSM-5 as a recoverable and reusable catalyst
Keri, Rangappa S.,Patil, Mahadeo,Budagumpi, Srinivasa,Sasidhar, Balappa S.
, (2021/05/27)
The design and application of environmentally friendly catalysts to reduce the number of toxic wastes are critical for improving the chemical synthetic protocols. A simple, mild, efficient, and eco-friendly method was developed for the synthesis of a seri
Cu/Ag mediated peroxide-free synthesis of benzoylated naphthol derivatives
Prasanna Kumari, Subramaniyan,Suresh, Pavithira,Muthukumar, Vijayashree,Selva Ganesan, Subramaniapillai
supporting information, (2020/10/13)
A peroxide-free methodology was developed for the synthesis of benzoylated naphthol/phenol derivatives through oxidative deamination reaction performed under aerobic reaction conditions. A synergistic combination of Cu(OTf)2 and Ag2O was used to convert the aminonaphthols and aminophenols to the corresponding benzoylated derivatives. The definite role of atmospheric oxygen to assist the reaction was proved by performing the reaction in the argon atmosphere.
Gold nanoparticles deposited on MnO2 nanorods modified graphene oxide composite: A potential ternary nanocatalyst for efficient synthesis of betti bases and bisamides
Nayak, Pratap S.,Barik, Bapun,Achary, L. Satish K.,Kumar, Aniket,Dash, Priyabrat
, (2019/06/06)
The decoration of novel nanostructures such as nano particle and nanorod on the surface of graphene oxide (GO) generate potential heterogeneous nanocatalyst. Highlighting this, in the present work, we have designed a ternary GO-MnO2-Au nanocomposite by decorating MnO2nanorods on the surface of graphene oxide via hydrothermal method, followed by deposition of Au nanoparticles on GO-MnO2 surface. The prepared nanocomposite was thoroughly characterised by different instrumental techniques such as X-Ray diffraction (XRD),Fourier transform infrared spectroscopy (FTIR),Raman spectroscopy, Field emission scanning electron microscopy (FESEM), Transmission electron microscopy (TEM), High resolution Transmission electron microscopy (HRTEM), X-Ray photo electron spectroscopy (XPS), N2 adsorption desorption Brunauer–Emmett–Teller (BET) isotherm and Inductively coupled plasma - optical emission spectrometry (ICP-OES). FESEM and TEM images demonstrated that the MnO2 forms rod like structure having diameter of 60–100 nm and are uniformly distributed over the GO surface. HRTEM image clearly signifies gold (Au) nanoparticles having diameter of 7 ± 1.9 nm homogeneously distributed throughout the GO-MnO2 surface. Elementary state of Au and tetravalent nature of Mn as well as reduction of functional group after the decoration was confirmed from XPS studies. The catalyst GO-MnO2-Au was found to be the superior catalyst for synthesis of biologically active molecules such as Betti bases and Bisamides. The high catalytic activity of the materials can be attributed to the small and homogeneous distribution of gold nanoparticles, high redox potential of rod shaped MnO2 and the synergistic effect between GO, MnO2 and Au. All the reaction conditions were optimised by varying catalyst dosage, effect of solvent and temperature. The GO-MnO2-Au was easily recycled with minimal leaching and the product yield was found to be 85–90% after 4th cycle demonstrating the stability and durability of our nanocomposite.
Revisiting the Betti Synthesis: Using a Cheap, Readily Available, Recyclable Clay Catalyst under Solventless Conditions
Bosica, Giovanna,Abdilla, Roderick,Demanuele, Kaylie
, p. 6127 - 6133 (2018/10/20)
One-pot multicomponent reactions have gained significant importance in recent years because they are usually more selective, simple, efficient, atom-economic and green than their multistep counterparts. The Betti synthesis involves the combination of aldehydes, amines and 2-naphthol to form compounds which can serve as catalysts or as biologically active compounds. In this study, Montmorillonite K30 was used as a heterogeneous catalyst for the Betti reaction at 60 °C in relatively short reaction times. Positively, it is cheap, readily and commercially available and requires no preparation, it can be used in neat conditions whilst minimizing excess reagent amounts. Most importantly, it is fully recoverable and can be recycled up to 5 times. In reactions involving secondary aliphatic amines, very good to excellent results were obtained whilst primary ones including benzylamine gave appreciable yields. In addition, the heteroaromatic aldehyde 4-pyridinecarboxaldehyde and the polyaromatic aldehyde 1-naphthaldehyde also gave encouraging results.
Catalyst-free multi-component cascade C-H-functionalization in water using molecular oxygen: An approach to 1,3-oxazines
Deb, Mohit L.,Pegu, Choitanya D.,Borpatra, Paran J.,Saikia, Prakash J.,Baruah, Pranjal K.
supporting information, p. 4036 - 4042 (2017/09/07)
Herein, catalyst-free 3-component reactions of naphthols, aldehydes, and tetrahydroisoquinolines to synthesize 1,3-oxazines is reported. The reaction is performed in H2O in the presence of O2 as the sole oxidant at 100 °C, which proceeds through the formation of 1-aminoalkyl-2-naphthols followed by selective α-C-H functionalization of tert-amine.
Multicomponent reaction in deep eutectic solvent for synthesis of substituted 1-aminoalkyl-2-naphthols
Azizi, Najmedin,Edrisi, Mahtab
, p. 379 - 385 (2017/01/14)
One-pot multicomponent synthesis of Betti bases (aminoalkyl naphthols) from aldehydes, β-naphthol, and secondary amines in deep eutectic solvent (DES) based on urea and choline chloride has been developed. A broad range of aminoalkyl naphthols can be obta
An amino-naphthol preparation method of compound
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Paragraph 0031; 0032; 0033; 0034, (2017/03/17)
The invention relates to a preparation method for aminonaphthol compound. The method includes the following steps: catalyst, aldehyde compound, secondary amine compound and naphthol are sequentially added into water and react under the temperature condition of 20 DEG C to 80 DEG C, and after reaction is complete, reaction liquid is obtained; the reaction liquid is sequentially extracted, dried, concentrated and separated by column chromatography according to the conventional method, so that product I or product II is obtained, and the structural formula of the product is shown in the figure. The preparation method has the advantages of mild conditions, short reaction time, simple post-processing, high yield and environment-friendliness, can realize mass production and has a good industrial application prospect.
Metal-free new synthesis of 1,3-naphthoxazines via intramolecular cross dehydrogenative-coupling reaction of 1-(α-aminoalkyl)-2-naphthols using hypervalent iodine(III) reagent
Waghmode, Nitin A.,Kalbandhe, Amit H.,Thorat, Prerana B.,Karade, Nandkishor N.
supporting information, p. 680 - 683 (2016/01/26)
A series of 1-(α-aminoalkyl)-2-naphthols were synthesized via three-component Betti reaction of β-naphthol, aldehyde, and cyclic secondary amine under reflux conditions. The subsequent reactions of 1-(α-aminoalkyl)-2-naphthols with (diacetoxyiodo)benzene
Synthesis, in silico studies and in vitro evaluation for antioxidant and antibacterial properties of diarylmethylamines: A novel class of structurally simple and highly potent pharmacophore
Mahato, Sujit,Singh, Anuma,Rangan, Latha,Jana, Chandan K.
, p. 202 - 209 (2016/05/24)
A series of novel diarylmethylamines were synthesized via simple three component condensation reaction. In vitro antibacterial activity of the synthesized compounds was assessed against Gram-positive and Gram-negative bacteria. Compound 1f containing phen
6-HYDROXY-2-NAPHTHALENYL FLUORENE DERIVATIVES AND LENS AND CAMERA MODULE USING THE SAME
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Paragraph 0081-0083, (2016/02/16)
Disclosed herein are 6-hydroxy-2-naphthalenyl fluorene derivatives and a lens and a camera module using the same.
