Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 

Saved Queries

Sign in to use this feature.

Search Filter Reset All

Years

Between: -

Subjects

remove_circle_outline
remove_circle_outline
remove_circle_outline
Add Subjects Reset
Select Subjects

Journals

remove_circle_outline
remove_circle_outline
Add Journals Reset
Select Journals

Article Types

remove_circle_outline
remove_circle_outline
Add Article Types Reset
Select Article Types

Countries / Regions

remove_circle_outline
remove_circle_outline
Add Countries / Regions Reset
Select Countries / Regions
Update Search
share announcement

Search Results (9)

Search Parameters:
Authors = Seranthimata Samshuddin

Order results
Result details
Results per page
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
5 pages, 89 KB  
Short Note
2'-[(4-Fluorophenyl)carbonyl]-1'-phenyl-1',2',5',6',7',7a'-hexahydrospiro[indole-3,3'-pyrrolizin]-2(1H)-one
by Majal Sapnakumari, Badiadka Narayana, Seranthimata Samshuddin and Balladka Kunhanna Sarojini
Molbank 2013, 2013(2), M802; https://doi.org/10.3390/M802 - 23 May 2013
Cited by 2 | Viewed by 3847
Abstract
A new spiro[indole-3,3'-pyrrolizine] derivative is regioselectively synthesized by the straightforward multicomponent reaction of 1-(4-fluorophenyl)-3-phenylprop-2-en-1-one, isatin and L-proline without any catalyst. The structure of the newly synthesized compound is characterized by IR, NMR, UV-visible and mass spectral data. The compound is also screened for [...] Read more.
A new spiro[indole-3,3'-pyrrolizine] derivative is regioselectively synthesized by the straightforward multicomponent reaction of 1-(4-fluorophenyl)-3-phenylprop-2-en-1-one, isatin and L-proline without any catalyst. The structure of the newly synthesized compound is characterized by IR, NMR, UV-visible and mass spectral data. The compound is also screened for its reducing power assay. Full article
►▼ Show Figures

Graphical abstract

4 pages, 68 KB  
Short Note
2-{[5-(Diphenylmethyl)-1,3,4-oxadiazol-2-yl]sulfanyl}-N-(pyrazin-2-yl)acetamide
by Prakash S. Nayak, Badiadka Narayana, Seranthimata Samshuddin and Balladka Kunhanna Sarojini
Molbank 2013, 2013(2), M800; https://doi.org/10.3390/M800 - 3 May 2013
Cited by 1 | Viewed by 5219
Abstract
S-Alkylation of 5-(diphenylmethyl)-1,3,4-oxadiazole-2(3H)-thione (3) by 2-chloro-N-(pyrazin-2-yl)acetamide (2) affords the title compound, 2-{[5-(diphenylmethyl)-1,3,4-oxadiazol-2-yl]sulfanyl}-N-(pyrazin-2-yl)acetamide (4). The intermediate (2), in turn, was prepared by the acetylation of 2-aminopyrazine (1) [...] Read more.
S-Alkylation of 5-(diphenylmethyl)-1,3,4-oxadiazole-2(3H)-thione (3) by 2-chloro-N-(pyrazin-2-yl)acetamide (2) affords the title compound, 2-{[5-(diphenylmethyl)-1,3,4-oxadiazol-2-yl]sulfanyl}-N-(pyrazin-2-yl)acetamide (4). The intermediate (2), in turn, was prepared by the acetylation of 2-aminopyrazine (1) with chloroacetyl chloride. The structure of the newly synthesized compound is characterized by IR, NMR and mass spectral data. Full article
►▼ Show Figures

Graphical abstract

4 pages, 62 KB  
Short Note
4-[5-(3,5-Difluorophenyl)furan-2-yl]-2,3,7-triazaspiro[4.5]dec-3-en-1-one Hydrochloride
by Rajagopalan Srinivasan, Badiadka Narayana, Seranthimata Samshuddin and Balladka Kunhanna Sarojini
Molbank 2012, 2012(3), M773; https://doi.org/10.3390/M773 - 24 Aug 2012
Cited by 1 | Viewed by 4100
Abstract
A novel route for the synthesis of new spirocyclic derivative is developed. The present work involves the synthesis of title compound 3 by Suzuki coupling of 3,5-difluorophenyl boronic acid with tert-butyl 1-(5-bromofuran-2-yl)-4-oxo-2,3,7-triazaspiro[4.5]dec-1-ene-7-carboxylate (2), which in turn prepared from the ethyl [...] Read more.
A novel route for the synthesis of new spirocyclic derivative is developed. The present work involves the synthesis of title compound 3 by Suzuki coupling of 3,5-difluorophenyl boronic acid with tert-butyl 1-(5-bromofuran-2-yl)-4-oxo-2,3,7-triazaspiro[4.5]dec-1-ene-7-carboxylate (2), which in turn prepared from the ethyl nipecotate (1). Newly prepared spirocyclic derivative (3) is characterized by IR, NMR and mass spectral data. Full article
►▼ Show Figures

Graphical abstract

4 pages, 70 KB  
Short Note
3-(4-Fluorophenyl)-N-[4-(4-furan-2-yl-1-oxo-2,3,7-triazaspiro[4.5]dec-3-en-2-yl)phenyl]propionamide Hydrochloride
by Rajagopalan Srinivasan, Badiadka Narayana, Seranthimata Samshuddin and Balladka Kunhanna Sarojini
Molbank 2012, 2012(3), M771; https://doi.org/10.3390/M771 - 17 Aug 2012
Cited by 1 | Viewed by 4496
Abstract
A simple and novel route for the synthesis of new spirocyclic propionamide derivative is developed. The present work involves N-arylation of pyrazolone (1) using copper(I) iodide catalyst followed by reduction to give amine (2). The coupling of 2 [...] Read more.
A simple and novel route for the synthesis of new spirocyclic propionamide derivative is developed. The present work involves N-arylation of pyrazolone (1) using copper(I) iodide catalyst followed by reduction to give amine (2). The coupling of 2 with 3-(4-fluorophenyl)propionic acid and deprotection of Boc group yields the title compound (3). Full article
►▼ Show Figures

Graphical abstract

8 pages, 273 KB  
Article
Synthesis, Characterization and Crystal Structures of 3,5-Bis(4-fluorophenyl)-4,5-dihydro-1H-pyrazole-1-carboxamide and 3,5-Bis(4-fluorophenyl)-4,5-dihydro-1H-pyrazole-1-carbothioamide
by Jerry P. Jasinski, James A. Golen, Seranthimata Samshuddin, Badiadka Narayana and Hemmige S. Yathirajan
Crystals 2012, 2(3), 1108-1115; https://doi.org/10.3390/cryst2031108 - 15 Aug 2012
Cited by 13 | Viewed by 7447
Abstract
Two new pyrazoline derivatives, 3,5-bis(4-fluorophenyl)-4,5-dihydropyrazole-1-carboxamide (1) and 3,5-bis(4-fluorophenyl)-4,5-dihydropyrazole-1-carbothioamide (2), were synthesized by reacting 4,4'-difluoro chalcone with semicarbazide hydrochloride and thiosemicarbazide in ethanolic sodium hydroxide solution. Both the compounds were confirmed by single crystal X-ray diffraction data and supported by [...] Read more.
Two new pyrazoline derivatives, 3,5-bis(4-fluorophenyl)-4,5-dihydropyrazole-1-carboxamide (1) and 3,5-bis(4-fluorophenyl)-4,5-dihydropyrazole-1-carbothioamide (2), were synthesized by reacting 4,4'-difluoro chalcone with semicarbazide hydrochloride and thiosemicarbazide in ethanolic sodium hydroxide solution. Both the compounds were confirmed by single crystal X-ray diffraction data and supported by IR, NMR, and mass spectral data. In 1, crystal packing is stabilized by N–H…O hydrogen bonds and weak N–H...N, N–H…F and C–H…F intermolecular interactions. In 2, only weak N–H…F and N–H…S intermolecular interactions are observed. Crystal data: C16H13F2N3O, (1), Mr = 301.29, monoclinic, C2/c, a = 17.6219(6) Å, b = 10.8735(3) Å, c = 15.3216(5) Å, β = 102.864(3)°, V = 2862.11(16) Å3, Z = 8, T = 173 K, R(F) = 0.0511, wR(F2) = 0.1333; C16H13F2N3S, (2), Mr = 317.35, monoclinic, P21/c, a = 14.339(2) Å, b = 11.1478(17) Å, c = 9.541(2)(5) Å, β = 107.007(18)°, V = 1458.5(5) Å3, Z = 4, T = 173 K, R(F) = 0.0413, wR(F2) = 0.0959. Full article
►▼ Show Figures

Figure 1

4 pages, 66 KB  
Short Note
N-(3,4-Dimethoxyphenyl)-4-oxo-2,3,7-triazaspiro[4.5]dec-1-ene-1-carboxamide Hydrochloride
by Rajagopalan Srinivasan, Badiadka Narayana, Seranthimata Samshuddin and Balladka Kunhanna Sarojini
Molbank 2012, 2012(3), M769; https://doi.org/10.3390/M769 - 8 Aug 2012
Cited by 3 | Viewed by 3744
Abstract
A simple and novel route for synthesis of new spirocyclic amide derivative is developed. The present work involves the oxidative cleavage of tert-butyl 1-(furan-2-yl)-4-oxo-2,3,7-triazaspiro[4.5]dec-1-ene-7-carboxylate 1 followed by the amine coupling and deprotection of Boc. Full article
►▼ Show Figures

Graphical abstract

4 pages, 86 KB  
Short Note
(2E)-3-[4-(1H-Benzimidazol-2-ylmethoxy)-3-methoxyphenyl]-1-(4,4''-difluoro-5'-methoxy-1,1':3',1''-terphenyl-4'-yl)prop-2-en-1-one
by Seranthimata Samshuddin, Badiadka Narayana, Divya N. Shetty, Rajagopalan Srinivasan and Balladka Kunhanna Sarojini
Molbank 2012, 2012(3), M764; https://doi.org/10.3390/M764 - 4 Jul 2012
Cited by 3 | Viewed by 4533
Abstract
Novel terphenyl chalcone containing benzimidazole moiety (3) is synthesized by the base-catalyzed Claisen–Schmidt condensation of acetyl terphenyl derivative (1) with 4-(1H-benzimidazol-2-ylmethoxy)-3-methoxybenzaldehyde (2). Newly prepared chalcone derivative (3) is characterized by IR, NMR and mass spectral data. Full article
►▼ Show Figures

Graphical abstract

4 pages, 110 KB  
Short Note
tert-Butyl 1-(Furan-2-yl)-4-oxo-2,3,7-triazaspiro[4.5]dec-1-ene-7-carboxylate
by Rajagopalan Srinivasan, Badiadka Narayana, Seranthimata Samshuddin and Balladka Kunhanna Sarojini
Molbank 2012, 2012(2), M757; https://doi.org/10.3390/M757 - 24 May 2012
Cited by 3 | Viewed by 4156
Abstract
A simple and novel route for synthesis of new spirocyclic compound is developed. The present work involves condensation of ethyl nipecotate with 2-furaldehyde followed by the MnO2 oxidation to give the β-keto ester which upon reaction with hydrazine hydrate gives the [...] Read more.
A simple and novel route for synthesis of new spirocyclic compound is developed. The present work involves condensation of ethyl nipecotate with 2-furaldehyde followed by the MnO2 oxidation to give the β-keto ester which upon reaction with hydrazine hydrate gives the spiro pyrazolone. Full article
►▼ Show Figures

Graphical abstract

4 pages, 180 KB  
Short Note
Ethyl 4,4''-Difluoro-5'-hydroxy-1,1':3',1''-terphenyl-4'-carboxylate
by Seranthimata Samshuddin, Badiadka Narayana and Balladka Kunhanna Sarojini
Molbank 2011, 2011(4), M745; https://doi.org/10.3390/M745 - 23 Nov 2011
Cited by 15 | Viewed by 5978
Abstract
A simple and novel route for the synthesis of new terphenyl derivative as well as oxidative aromatization of α,β-unsaturated cyclohexenone to the corresponding phenol derivative is developed. The present work involves the condensation of ethylacetoacetate with 4,4'-difluoro chalcone followed by the aromatization using [...] Read more.
A simple and novel route for the synthesis of new terphenyl derivative as well as oxidative aromatization of α,β-unsaturated cyclohexenone to the corresponding phenol derivative is developed. The present work involves the condensation of ethylacetoacetate with 4,4'-difluoro chalcone followed by the aromatization using chloramine-T in acetic acid to yield the title compound (3). The synthesized compound (3) is well characterized by IR, NMR, LCMS and elemental analysis. Full article
►▼ Show Figures

Graphical abstract

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying article 1-50 on page 1 of 1.
Back to TopTop