2653-08-9Relevant academic research and scientific papers
Synthesis and physiochemical properties of novel gemini surfactants with phenyl-1,4-bis(carbamoylmethyl) spacer
Wang, Liyan,Zhang, Yue,Ding, Limin,Liu, Jia,Zhao, Bing,Deng, Qigang,Yan, Tie
, p. 74764 - 74773 (2015)
A series of novel gemini surfactants, namely, phenyl-1,4-bis[(carbamoylmethyl) N,N-dimethylalkyl ammonium chloride)] (a, b and c), was synthesized systematically and characterized by FTIR, 1H NMR, 13C NMR and MS. The surface and bulk
Synthesis and characterization of symmetrical liquid crystalline compounds based on oxazole and thaizole rings
Ibraheem, Tareq K.,Karam, Nisreen H.,Al-Dujaili, Ammar H.
, p. 1 - 12 (2020)
Twelve compounds containing a sulphur- or oxygen-based heterocyclic core, 1,3- oxazole or 1,3-thiazole ring with hydroxy, methoxy and methyl terminal substituent, were synthesized and characterized. The molecular structures of these compounds were perform
Efficient routes for the synthesis of novel bis(s-triazolo[3,4-b][1,3,4] thiadiazines)
Sarhan, Radwan M.,Badawy, Mohamed A.,Elwahy, Ahmed H. M.
, p. E176-E182 (2014/11/07)
Bis(triazolo[3,4-b]thiadiazine) 4 in which the fused system is linked directly to the benzene core can be synthesized in 75% yield by, firstly, preparation of bis(s-triazole) 2 followed by reaction with phenacyl bromide 3 in refluxing EtOH/DMF mixture containing piperidine. Bis(s-triazolo[3,4-b][1,3,4] thiadiazines) 8 and 11 in which the triazolothiadiazines are linked to benzene core via alkyl or ether linkage were synthesized in 70 and 72% yields, respectively, starting from dicarboxylic acids 5 and 9 upon treatment with two moles of thiocarbohydrazide 6 to give the corresponding bis(4-amino-5-mercapto- s-triazolo-3-y1) derivatives 7 and 10 and subsequent reaction with two equivalents of phenacyl bromide. Bis(6-phenyl-7H-[1,2,4]triazolo[3,4-b][1,3,4] thiadiazines) 15a, 15b, 15c, 15d, 15e, 15f, which are linked to arene cores via sulfanylmethylene spacers, were prepared by the reaction of 4-amino-4H-1,2,4- triazole-3,5-dithiol 12 with the appropriate bis(bromomethyl)benzenes 13a, 13b, 13c, 13d, 13e, 13f to give bis(4-amino-5-mercapto-4H-3-sulfanylmethyl)arenes 14a, 14b, 14c, 14d, 14e, 14f and subsequent reaction with phenacyl bromide. Compounds 15a, 15b, 15c, 15d, 15e, 15f were alternatively obtained in 60-70% yields by twofold substitution of 13a, 13b, 13c, 13d, 13e, 13f with two equivalents of 6-phenyl-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazine-3-thiol 16 in refluxing EtOH/DMF mixture containing KOH. Bis(triazolothiadiazine) 22 attached to the benzene core through the thiadiazine ring via an amine linkage was prepared in 70% yield starting from p-phenylenediamine 19 by, firstly, acylation with chloroacetyl chloride 18 followed by bis-alkylation with 1,2,4-triazole 20 and subsequent intramolecular ring closure upon treatment with phosphorus oxychloride.
Synthesis of α-chloroamides in water
Harte, Andrew J.,Gunnlaugsson, Thorfinnur
, p. 6321 - 6324 (2007/10/03)
The reaction between chloroacetyl chloride and mono- or bis-aliphatic or aromatic amines in water under basic or neutral conditions gives rise to the formation of a variety of functionalized α-chloroamides. The resulting products were obtained as solids in moderate to good yields, upon precipitation and isolation by filtration.
