نتایج جستجو برای: aminobenzothiazole

تعداد نتایج: 76  

2017
Xiuju Wang Kaili Zhou Zhun Ma Xingjie Lu Liguo Wang Zhongpeng Wang Xueli Gao

Hexavalent chromium is one of the main heavy metal pollutants. As the environmental legislation becomes increasingly strict, seeking new technology to treat wastewater containing hexavalent chromium is becoming more and more important. In this research, a novel modified ultrafiltration membrane that could be applied to adsorb and purify water containing hexavalent chromium, was prepared by poly...

2014
Boomadevi Janaki

Novel copper complexes of 2-aminobenzothiazole derivatives were synthesized by the condensation of knoevengal condensate acetoacetanilide (obtained from substituted benzaldehydes and acetoacetanilide) and 2-aminobenzothiazole. They were thoroughly characterized by elemental analysis, IR, H-NMR, UV-Vis., molar conductance, magnetic moment and electrochemical studies. The UV-Vis., spectral study ...

2013
Hong Gao Jing Sun Chao-Guo Yan

The four-component reaction of 2-aminobenzothiazole, aromatic aldehydes, acetylenedicarboxylate and piperidine or pyrrolidine in ethanol afforded the functionalized 2-pyrrolidinones containing both benzothiazolyl and piperidinyl (or pyrrolidinyl) units in good yields. On the other hand, the similar four-component reactions resulted in the functionalized morpholinium or piperidinium 2-pyrrolidin...

2013
Wei Lin Li Li Li Wang Qiu Yan Luo

To develop a new facile protocol for the synthesis of 2'-aminobenzothiazolo-arylmethyl-2-naphthol derivatives, N-bromosuccinimide (NBS) was used as an efficient catalyst for the one-pot synthesis of 2'-aminobenzothiazolo-arylmethyl-2-naphthols in excellent yields from β -naphthol (1 mmol), aromatic aldehydes (1 mmol), and 2-aminobenzothiazole (1 mmol) at 60°C under solvent-free conditions.

Journal: :Memorias do Instituto Oswaldo Cruz 1996
C M Mesa-Valle V Moraleda-Lindez D Craciunescu A Osuna

The three organometallic complexes [(Cis-PtII (DDH) (2,5-Dihidroxibenzensulfonic)2, RhI(CO)2Cl(2-Aminobenzothiazole) and RhI(CO)2Cl(5-Cl-2-Methilbenzothiazole)] used in this study had been previously found to have a high in vitro activity against promastigote and amastigote like forms of Leishmania donovani. Here, the cytotoxic effect of these new organometallic complexes on the J-774 macrophag...

Journal: :Acta poloniae pharmaceutica 2009
Mohammad Shahar Yar Zaheen Hasan Ansari

A series of N-{(substituted)1,3-benzothiazol-2-yl}-1,1 '-biphenyl-4-carboxamides was synthesized by reaction between biphenyl acid chloride and 2-aminobenzothiazole. The synthesized compounds were screened in vivo for diuretic activity. Among the series, N-(1,3-benzothiazol-2-yl)-1,1'-biphenyl-4-carboxamide (II) was found to be the most promising candidate.

2016
Vishal Srivastava Pravin K. Singh Praveen P. Singh

A mild and efficient one-pot visible light irradiated synthesis of 2-aminobenzothiazole 4(a–l) from arylisothiocyanate 1(a–l) and secondary amines 2 have been reported in presence of eosin Y as an organophotoredox catalyst at room temperature under aerobic condition. This synthesis includes application of air and visible light as inexpensive, readily available, high atom economy, non-toxic and ...

2016
Mukta Singsardar Shubhanjan Mitra Adinath Majee Alakananda Hajra

A Ni-catalyzed C-S bond forming reaction has been developed for the synthesis of 2-aminobenzothiazole by the coupling of 2-haloanilines (-bromo and -iodo) with isothiocyanates. The key advantages of this procedure are ligand-free condition, inexpensive catalyst, high yields, and simple purification of the products by nonchromatographic technique.

2013
Fatemeh Chadegani Fatemeh Darviche Saeed Balalaie

The one-pot three-component reaction of 2-aminobenzothiazole, benzaldehyde derivatives and β-ketoester, β-diketone or malonate derivatives in solvent-free conditions provides the corresponding pyrimido[2,1-b]benzothiazole derivatives at 60 ̊C in 60% 72% yields without using any catalyst in an optimistic time.

Journal: :Dalton transactions 2015
Subhi A Al-Jibori Ahmed A Irzoqi Emad G H Al-Saraj Ahmed S M Al-Janabi Sucharita Basak-Modi Shishir Ghosh Kurt Merzweiler Christoph Wagner Harry Schmidt Graeme Hogarth

Addition of 2-aminobenzothiazole and substituted derivatives to mercuric acetate in warm ethanol leads to the high yield formation of [Hg{SC6H3XN(C[triple bond, length as m-dash]N)}]n resulting from loss of hydrogen and sulfur-carbon bond cleavage. Addition of phosphines affords a series of complexes in which the new ortho-cyano-aminothiophenolate ligands adopt three different binding modes.

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