158634-64-1Relevant articles and documents
Iron-catalyzed direct synthesis of imines from amines or alcohols and amines via aerobic oxidative reactions under air
Zhang, Erlei,Tian, Haiwen,Xu, Sendong,Yu, Xiaochun,Xu, Qing
supporting information, p. 2704 - 2707 (2013/07/19)
Abundant and cheap iron readily catalyzed the aerobic oxidative reactions of primary amines, secondary amines, benzylamines with anilines, and alcohols with amines by directly using air as the economic and safe oxidant, providing several direct, practical, and greener approaches for the preparation of useful imines.
Synthesis of-lactams from acids and imines using thiocarbonyldiimidazole
Zarei, Maaroof,Karimi-Jaberi, Zahed,Movahedi, Amin
, p. 728 - 734 (2013/01/15)
Thiocarbonyldiimidazole has been found to be an efficient acid activator for the synthesis of-lactams by ketene-imine cycloaddition at room temperature. The experimental procedure is simple and results in excellent yields of the products. All products wer
GREEN SYNTHESIS OF ARYL ALDIMINES USING ETHYL LACTATE
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Page/Page column 5-6, (2011/08/22)
The present invention relates to a method for preparing aryl aldimines. In particular, the present invention relates to methods of preparing aryl aldimines that uses environmentally friendly solvent systems.
Synthesis of structurally diverse 2-azetidinones via staudinger reaction on a solid support
Jarrahpour, Aliasghar,Fadavi, Abdolhamid,Zarei, Maaroof
experimental part, p. 320 - 327 (2011/05/14)
Trimellitic anhydride was attached to Merrifield resin and a ketene was generated from polymer-bound phthaloylglycine. Then this polymer reacted with imines in the presence of Vilsmeier reagent and triethylamine to afford the solid-phase-tethered β-lactam products. Selective cleavage of supported β-lactams by trifluoroacetic acid and methylhydrazine gave 4-carboxyphthalimido- and 3-amino-β-lactams, respectively. The trans-stereochemistry was found in all products.
The Vilsmeier reagent: a useful and versatile reagent for the synthesis of 2-azetidinones
Jarrahpour, Aliasghar,Zarei, Maaroof
experimental part, p. 2927 - 2934 (2009/05/30)
(Chloromethylene)dimethylammonium chloride (Vilsmeier reagent), prepared easily from N,N-dimethylformamide and oxalyl chloride or thionyl chloride, works as a versatile acid activator reagent for the direct [2+2] ketene-imine cycloaddition of substituted
Study of binary systems including mesophase and determination of latent transition temperature (LTT)
Patel,Doshi
experimental part, p. 267 - 272 (2009/06/25)
Six binary systems consisting of common component A1 and A 2 (mesogen) are mixed with uncommon component (B) (nonmesogen), i.e. para-substituted Schiff's bases. The results shows that the mixed melt have the latent ability to exhibit
Synthesis of novel N-(4-ethoxyphenyl) azetidin-2-ones and their oxidative N-deprotection by ceric ammonium nitrate
Jarrahpour, Aliasghar,Zarei, Maaroof
, p. 2364 - 2379 (2008/02/14)
It is shown that the N-(p-ethoxyphenyl) group on β-lactams can be oxidatively removed by ceric ammonium nitrate in good yield. Fourteen new N-(p-ethoxyphenyl)-2-azetidinones 8a-n were synthesized through standard [2+2] ketene-imine cycloadditions (Staudinger reaction). Treatment of these compounds with ceric ammonium nitrate yielded the N-dearylated 2-azetidinones 9a-n in good to excellent yields. The effects of solvent, molar equiv of CAN and different temperatures have been investigated and optimum conditions were established.
Study of binary systems inducing mesophase and determination of latent transition temperature
Ganatra,Doshi
, p. 322 - 325 (2007/10/03)
Five binary systems consisting of common component as nematogen (A), viz. p-(p'-n-propyloxybenzoyloxy)anisole is mixed with uncommon component (B) (nonmesogen or monotropic nematic), para-substituted Schiff bases, viz. X-C6H4-CH=N-C
Studies on Mixed Liquid Crystal. Part-I. Nemetic Mesophase induced by Mixing Two Non-liquid Crystalline Components and Determination of Latent Transition Temperature
Doshi, A.V.,Joshi, N.N.
, p. 807 - 810 (2007/10/02)
Eight binary systems consisting of both non-liquid crystalline components, viz. p-methoxyphenyl-p''-methoxy benzoate and Schiff base have been studied.One of the eight binary systems involving Schiff base p-tolual-p-phenetidine was found to give monotropi