Výsledky vyhledávání - "Manas Jyoti Sarma"

A quick Chan–Lam C–N and C–S cross coupling at room temperature in the presence of square pyramidal [Cu(DMAP)4I]I as a catalyst

Autor: Bishwapran Kashyap, Subhasish Roy, Manas Jyoti Sarma, Prodeep Phukan

Publikováno v: Chemical Communications. 52:1170-1173

A rapid and efficient protocol for C-N and C-S cross coupling has been developed using a new square pyramidal copper complex, [Cu(DMAP)4I]I. The complex was successfully synthesized via a disproportionation reaction of CuI and DMAP in DMSO. The catal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9b8fc2b987ccdf47716a9a0d5201f47
https://doi.org/10.1039/c5cc04619j

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Metal-free synthesis of secondary amines by the reaction of tosyl triazene and aryl boronic acid

Autor: Prodeep Phukan, Manas Jyoti Sarma

A metal free noncatalytic amination process has been developed for the synthesis of N-substituted aniline using a new amine source. The amine source p-toluene sulfonyl triazene (PhN˭NNHTs) has been prepared by treating aryldiazonium salt with p-tosy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::57bcd9ff85c2d7850ec6a99168144685

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Unexpected C-C bond cleavage ofα-nitroketone in the presence of TsNBr2: A new pathway for C-N bond formation

Autor: Manas Jyoti Sarma, Prodeep Phukan

Publikováno v: Synthetic Communications. 46:257-262

A new catalyst-free protocol for C-N bond formation via the cleavage of α-nitroketone has been developed. When α -nitroketones are treated with TsNBr2 in the presence of potassium carbonate, unexpected cleavage of C(O)-CHNO2 bond of α -nitroketone

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7ebb6e7d95ac24bd8b551f0397c63d72
https://doi.org/10.1080/00397911.2015.1135348

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Formation of new C–O and C–N bonds via base promoted Csp2–Csp3 bond cleavage of α-nitro ketone

Autor: Arun Jyoti Borah, Prodeep Phukan, Manas Jyoti Sarma, Kamal Krishna Rajbongshi

Publikováno v: Tetrahedron Letters. 56:7008-7011

A catalyst free protocol has been developed for nucleophilic C sp 2 – C sp 3 bond cleavage of α-nitroketone in the presence of potassium carbonate to create new C–O and C–N bonds. A series of different substituted α-nitroketones could be sele

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d5b5c5d0641380b47642eb17d8287836
https://doi.org/10.1016/j.tetlet.2015.11.002

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Surfactant Dependent pH Controlled 'off-on', 'off-on-off' and 'on-off' Fluorescent Switches Exhibited by N-Benzylidenenaphthalen-1-Amine

Autor: Diganta Kumar Das, Manas Jyoti Sarma, Prodeep Phukan, Jutika Kumar

Publikováno v: Journal of Fluorescence. 25:1431-1435

N-benzylidenenaphthalen-1-amine (L) acts as pH dependent "off-on", "off-on-off" and "on-off" fluorescent switch in 1:1 (v/v) CH3CN:H2O depending on the presence of anionic sodiumdocdecyl sulphate (SDS), neutral triton X-100 (TX-100) and cationic cety

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eed14abcb16c189fc1d7485a8d93c1e7
https://doi.org/10.1007/s10895-015-1633-y

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Selective synthesis of nitroalcohols in the presence of Ambersep 900 OH as heterogeneous catalyst

Autor: Prodeep Phukan, Manas Jyoti Sarma, Rajsekhar Lodh, Arun Jyoti Borah

Publikováno v: Monatshefte für Chemie - Chemical Monthly. 146:969-972

A green protocol has been developed for the selective synthesis of β-nitroalcohols using commercially available Ambersep 900 OH as reusable heterogeneous catalyst. The reaction between aldehyde and nitromethane was performed under solvent-free condi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b5ffe64e2c30674c77bf50271a3358a1
https://doi.org/10.1007/s00706-014-1395-2

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A new simple Schiff base fluorescence 'on' sensor for Al3+ and its living cell imaging

Autor: Diganta Kumar Das, Manas Jyoti Sarma, Jutika Kumar, Prodeep Phukan

Publikováno v: Dalton Transactions. 44:4576-4581

The simple Schiff base (Z)-N-benzylidenenaphthalen-1-amine (L) acts as an effective fluorescence sensor for Al(3+) by "off-on" mode, and ca. 42 times enhancement in fluorescence intensity is observed. The detection limit of L towards Al(3+) is observ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e3a56fd1073556043e0124bd555fc3c
https://doi.org/10.1039/c4dt03932g

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