55131-12-9Relevant academic research and scientific papers
A new and efficient epoxide ring opening via poor nucleophiles: Indole, p-nitroaniline, borane and O-trimethylsilylhydroxylamine in lithium perchlorate
Heydari, Akbar,Mehrdad, Morteza,Maleki, Aziz,Ahmadi, Nafiseh
, p. 1563 - 1565 (2004)
Highly regioselective ring opening of 2,3-dimethyloxirane, 2-epoxyphenylether and allyl(2-epoxymethyl) ether are observed through reactions with poor nucleophiles such as indole, borane, O-trimethylsilylhydroxylamine, p-nitroaniline and sterically hindered tert-butylamine in the presence of 5.0 M lithium perchlorate-Et2O solution. These reactions are fast, convenient, with rather high yields and are carried out at ambient temperatures.
Synthesis and application of Cu(II) immobilized MCM-41 based solid Lewis acid catalyst for aminolysis reaction under solvent-free condition
Chaudhary, Garima,Gupta, Neha,Singh, Amit Pratap
, (2021/07/22)
In this paper, a Cu(II) immobilized periodic mesoporous organosilica (PMOs) was synthesized and used as a reusable solid Lewis acid catalyst for the aminolysis of epoxides under solvent-free conditions. An amide-based ligand, L-propylsilyl (1) having a specific binding pocket was prepared and fabricated on mesoporous MCM-41 to produce mesoporous organosilica L-propylsilyl@MCM-41 (2). Further, it has been utilized for anchoring Cu(II) ions under controlled reaction conditions to yield solid Lewis acid catalyst Cu(II)-L-propylsilyl@MCM-41 (3). The synthesized catalyst 3 exhibits significantly higher catalytic activity for aminolysis compared to hitherto known solid Lewis acid catalysts. An extensive range of β-amino alcohols with high regio and stereoselectivity were prepared by using catalyst 3. The catalyst was recovered easily and reused eight times without any loss in its catalytic activity. Furthermore, the synthesis of clinically significant propranolol (β-blocker) from α- naphthyl glycidyl ether was attained successfully using catalyst 3 in a very decent yield.
Efficient synthesis of β-amino alcohols by regioselective ring opening of epoxides with amines catalyzed by CuFe2O4 nanoparticles
Baghbanian, Seyed Meysam,Farhang, Maryam
, p. 1033 - 1037 (2013/09/23)
A simple and efficient method has been developed for the synthesis of β-amino alcohols by regioselective ring opening of epoxides with amines in the presence of CuFe2O4 nanoparticles as a heterogeneous recyclable catalyst at room temperature in high yields.
Silica chloride nano particle catalyzed ring opening of epoxides by aromatic amines
Karimian, Ramin,Piri, Farideh,Karimi, Babak,Moghimi, Abolghasem
experimental part, p. 955 - 958 (2012/01/05)
Silica chloride nano particle (nano SiO2-Cl), has been found to be heterogeneous catalyst for facile, simple and mild ring opening of epoxides with aromatic amines to afford β-amino alcohols in dry CH 2Cl2 at room temperature.
Bi(OTf)3- and Bi(TFA)3-catalyzed ring opening of epoxides with anilines under microwave irradiation
Khosropour, Ahmad R.,Khodaei, Mohammad M.,Ghozati, Kazem
, p. 304 - 305 (2007/10/03)
A facile and environmentally friendly methodology for ring opening of epoxides with anilines has been developed in the presence of catalytic amounts of bismuth (III) triflate or bismuth (III) trifluoroacetate using microwave-assisted heating. The ease of this procedure allowed preparation of the β-aminoalcohols quickly and efficiently.
Calcium trifluoromethanesulfonate-catalysed aminolysis of epoxides
Cepanec, Ivica,Litvi?, Mladen,Mikulda?, Hrvoje,Bartolin?i?, Anamarija,Vinkovi?, Vladimir
, p. 2435 - 2439 (2007/10/03)
Aminolysis of epoxides catalysed by calcium trifluoromethanesulfonate under mild reaction conditions is described. The novel method is very efficient in the synthesis of wide variety of β-amino alcohols with high regio- and stereoselectivity.
