119825-05-7Relevant articles and documents
Efficient synthesis of benzo[g]- and benzo[h]chromene derivatives by one-pot three-component condensation of aromatic aldehydes with active methylene compounds and naphthols
Sunil Kumar,Srinivasulu,Udupi,Rajitha,Thirupathi Reddy,Narsimha Reddy,Kumar
, p. 1813 - 1815 (2006)
A convenient procedure is reported for the synthesis of benzo[g]-and benzo[h]chromene derivatives via one-pot three-component condensation of aromatic aldehydes with malononitrile or ethyl cyanoacetate and 1-or 2-naphthol in the presence of 10 mol % of ti
An Efficient and Convenient Approach to the Synthesis of Benzopyrans by a Three-Component Coupling of One-Pot Reaction
Jin, Tong-Shou,Xiao, Jin-Chong,Wang, Su-Juan,Li, Tong-Shuang,Song, Xin-Ru
, p. 2001 - 2004 (2003)
A general and practical chemistry route to the synthesis of polyfunctionlized benzopyrans using tetrabutylammonium bromide (TBABr) as the catalyst (10 mol%) is described. This method provides several advantages such as neutral conditions, high yields and simple work-up procedure. In addition, water was chosen as a green solvent.
A one-pot green synthesis of 2-amino-4H-benzo[h]chromenes catalyzed by a dioxomolybdenum Schiff base complex supported on magnetic nanoparticles as an efficient and recyclable nanocatalyst
Aghajani, Milad,Monadi, Niaz
, p. 775 - 784 (2019)
In this work, catalytic performance of a molybdenum Schiff base complex-supported magnetic support as a nanocatalyst was evaluated for the preparation of 2-amino-4H-benzo[h]chromenes through one-pot, three component reactions of 1-naphthol, various aldehydes, and malononitrile under solvent-free conditions. A promising greener and eco-friendly method with a short reaction time, high yield of products, and simple work-up procedure was achieved. The nanocatalyst could be easily separated and regenerated from reaction media by an external magnet and reused at least seven consecutive times with small drops in its catalytic performance.
Convenient and efficient one-pot method for the synthesis of 2-amino-tetrahydro-4H-chromenes and 2-amino-4H-benzo[h]-chromenes using catalytic amount of aminofunctionalized MCM-41 in aqueous media
Mirza-Aghayan,Nazmdeh,Boukherroub,Rahimifard,Tarlani,Abolghasemi-Malakshah
, p. 1499 - 1507 (2013)
A convenient and efficient one-pot method for the synthesis of 2-amino-tetrahydro-4H-chromene and 2-amino-4H-benzo[h]-chromene derivatives has been developed using a catalytic amount of amino-functionalized MCM-41 in aqueous medium. This efficient techniq
Facile synthesis and antiproliferative activity of 7H-benzo[7,8]chromeno[2,3-d]pyrimidin-8-amines
Akrami, Hamidreza,Safavi, Maliheh,Mirjalili, Bibi Fatemeh,Dehghani Ashkezari, Mahmood,Dadfar, Farhang,Mohaghegh, Najme,Emami, Saeed,Salehi, Fahimeh,Nadri, Hamid,Ardestani, Sussan K.,Firoozpour, Loghman,Khoobi, Mehdi,Foroumadi, Alireza
, p. 128 - 136 (2017)
A series of 7H-benzo[7,8]chromeno[2,3-d]pyrimidin-8-amines 6a-t were synthesized as new potential antiproliferative agents. The in?vitro antiproliferative activity evaluation of title compounds using MTT assay revealed that most compounds showed significa
A molybdenum(VI) Schiff base complex immobilized on functionalized Fe3O4 nanoparticles as a recoverable nanocatalyst for synthesis of 2-amino-4H-benzo[h]chromenes
Monadi, Niaz,Moradi, Elham
, p. 161 - 170 (2018)
A dioxomolybdenum(VI) complex of a Schiff base, immobilized on the surface of modified Fe3O4 with a silica coating, has been synthesized and characterized by spectroscopic and microscopic techniques including FTIR, TGA, ICP, SEM, EDX, VSM, and XRD analyses. The catalytic performance of this material has been evaluated for the preparation of 2-amino-4H-benzo[h]chromenes via the one-pot, three-component reaction of aldehydes, malononitrile, and 1-naphthol under solvent-free conditions. The benefits of this protocol are short reaction time, simple workup procedure, and high yields of products. Also, the synthesized nanocatalyst could be separated easily from the reaction mixture using an external magnet and reused for four consecutive times with only minor degradation of its catalytic performance.
Basic alumina catalysed synthesis of substituted 2-amino-2-chromenes via three-component reaction
Maggi, Raimondo,Ballini, Roberto,Sartori, Giovanni,Sartorio, Raffaella
, p. 2297 - 2299 (2004)
Substituted 2-amino-2-chromenes were obtained in excellent yield and selectivity simply by mixing malononitrile, α-naphthol and aromatic aldehydes in water in the presence of basic alumina as heterogeneous and reusable catalyst.
Solvent-free one-pot approach for synthesis of substituted 2-aminochromenes
Zhou, Dong,Ren, Zhongjiao,Cao, Weiguo,Chen, Jie,Deng, Hongmei
, p. 1865 - 1867 (2008)
(Chemical Equation Presented) A solvent-free one-pot approach for the preparation of 2-aminochromenes in the presence of NaHCO3 by grinding was described. Its advantages are easy work-up, mild reaction condition, high yield and environmental compatibility.
Choline chloride/pentaerythritol: a deep eutectic solvent for the synthesis of pyran and chromene derivatives
Azimzadeh-Sadeghi, Setareh,Yavari, Issa
, p. 1261 - 1267 (2020/11/23)
Abstract: A novel deep eutectic solvent system was prepared by mixing choline chloride as a hydrogen-bond acceptor with 2,2-bis(hydroxymethyl)propane-1,3-diol (pentaerythritol) as a hydrogen-bond donor. This green solvent was used for the one-pot synthesi
Synthesis and characterization of pine-cone derived carbon-based solid acid: A green and recoverable catalyst for the synthesis of pyra-no_pyrazole, amino-benzochromene, amidoalkyl naphthol and thiazoli-dinedione derivatives
Ghorbani, Fatemeh,Pourmousavi, Seied Ali,Kiyani, Hamzeh
, p. 66 - 81 (2021/03/19)
In this report, SO3H-functionalized Carbon nanoparticles (Pine-SO3H) with high acid density have been synthesized by the thermal treatment of sulfuric acid with Pine-Cone as carbon-based at 180oC in a sealed autoclave in a