Skoči na glavni sadržaj

Rezultati pretrage

Filtriraj prema
Nazivu časopisa
Croatica Chemica Acta 4
Journal of Sustainable Development of Energy, Water and Environment Systems 1
Pomorstvo 1
Autoru
Singh, Praveen P. 4
Singh, Pravin K. 4
Srivastava, Vishal 4
Herme, Carlos A. 1
Jacobo, Silvia E. 1
Jurdana, Irena 1
Kunić, Srećko 1
Mishra, Mangla 1
Štrlek, Marko 1
Vrsti članka
Izvorni znanstveni članak 5
Pregledni rad 1
Jeziku
engleski 6
hrvatski 1
Ključnim riječima
organophotoredox 3
visible-light 3
Eosin Y 2
aerobic condition 2
eosin Y 2
green chemistry 2
4G communications 1
4G komunikacija 1
Azo dye 1
Composites. 1
C–H oxidation 1
Magnetic nanoparticles 1
Photocatalytic discoloration 1
Strontium hexaferrite 1
Visible light photocatalysis 1
Zinc oxide 1
allylic oxidation 1
aminobenzothiazole 1
benzoxazoles 1
bežične optičke mreže 1
enones 1
heterocycle 1
komunikacija vidljivim svjetlom 1
local communication networks 1
lokalne komunikacijske mreže 1
Znanstvenom području
Biotehničke znanosti 6
Biomedicina i zdravstvo 4
Prirodne znanosti 4
Tehničke znanosti 2
Društvene znanosti 1
Humanističke znanosti 1
Znanstvenom polju
Biologija 4
Farmacija 4
Kemija 4
Prehrambena tehnologija 4
Biotehnologija 1
Brodogradnja 1
Ekonomija 1
Elektrotehnika 1
Povijest 1
Pravo 1
Godini
2015 2
2022 2
2013 1
2017 1

eng Visible-light Driven Eosin Y Catalyzed C(sp2)-H Functionalization/C–O Bond Formation for Synthesis of Benzoxazoles
Mishra, Mangla; Srivastava, Vishal; Singh, Pravin K.; Singh, Praveen P.
Croatica Chemica Acta Vol. 95, No. 1, 2022
Visible light mediated synthesis of benzoxazoles from benzanilides under an air atmosphere at room temperature is reported using eosin Y as an organophotoredox catalyst by functionalization of C–H/C–O bond formation. This methodology accepts a broad range of functional groups and affords the benzoxazoles by transition-metal-free organic photoredox catalysis under very mild conditions.
Hrčak ID: 293306
PDF (Engleski, 5379 KB)

eng Eosin Y Catalyzed Visible-light-promoted One –Pot Facile Synthesis of 1,3,4- Thiadiazole
Srivastava, Vishal; Singh, Pravin K.; Singh, Praveen P.
Croatica Chemica Acta Vol. 88, No. 1, 2015
A novel one-pot visible light irradiated synthesis of 1,3,4-thiadiazole from aldehydes and thioacyl hydrazides 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, non-toxic and sustainable regents, which fulfils the basic principle of green chemistry.
Hrčak ID: 139130
PDF (Engleski, 2288 KB)

eng Visible Light Promoted Allylic C–H Oxidation
Srivastava, Vishal; Singh, Pravin K.; Singh, Praveen P.
Croatica Chemica Acta Vol. 90, No. 3, 2017
A mild and efficient one-pot visible light-induced method has been developed for the allylic oxidation. The oxidation of allylic systems has played a prominent role in this context as possibly the most widely applied C–H functionalization, owing to the utility of enones. The allylic C–H oxidation is relatively simple and predictable, even on a preparative scale, because active species generated at the allylic position are stabilized by the double bond. <br><a rel="license" href="http://creativecommons.org/licenses/by/4.0/"><img alt="Creative C...
Hrčak ID: 184812
PDF (Engleski, 6453 KB)

eng Strontium Hexaferrite / Zinc Oxide Nanocomposites: Study on Photocatalytic Discoloration of Orange II Dye
Herme, Carlos A.; Jacobo, Silvia E.
Journal of Sustainable Development of Energy, Water and Environment Systems Vol. 10, No. 2, 2022
Orange II is an azo dye widely used in textile industry. Its discharge into water bodies is harmful to the ecosystem and causes health hazard. The removal of organic pollutants from wastewater by photocatalyzed discoloration processes has been thoroughly studied. Notwithstanding, it would be interesting to support the catalyst on magnetic materials in order to facilitate its recovery. In the present work, catalytic discoloration of Orange II was performed using zinc oxide nanopowder in aqueous suspension and novel composites of zinc oxide suppo...
Hrčak ID: 275121
PDF (Engleski, 888 KB)

eng Eosin Y Catalyzed Visible-Light-Promoted Aerobic Oxidative Cyclization of 2-Aminobenzothiazole
Srivastava, Vishal; Singh, Pravin K.; Singh, Praveen P.
Croatica Chemica Acta Vol. 88, No. 3, 2015
A mild and efficient one-pot visible light irradiated synthesis of 2-aminobenzothiazole <b>4(a–l)</b> from arylisothiocyanate <b>1(a–l)</b> and secondary amines <b>2</b> 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 sustainable regents.
Hrčak ID: 150526
PDF (Engleski, 2654 KB)

hrv BEŽIČNE OPTIČKE MREŽE – MOBILNE KOMUNIKACIJE UPORABOM VIDLJIVOG SVJETLA
eng WIRELESS OPTICAL NETWORKS - MOBILE COMMUNICATIONS BY USING VISIBLE LIGHT
Jurdana, Irena; Štrlek, Marko; Kunić, Srećko
Pomorstvo Vol. 27, No. 1, 2013
Potreba za većim brzinama prijenosa podataka postaje sve izraženija na današnjem informacijskom i komunikacijskom tržištu. S obzirom na zahtjeve korisnika telekomunikacijskih usluga, računalni, informatički i multimedijalni sustavi srednje i velike mobilnosti traže veliku propusnost podataka. Rast u trendovima korištenja multimedijalnih sadržaja na tim sustavima ubrzo će dovesti postojeće telekomunikacijske brzine prijenosa podataka do granica fizikalnih mogućnosti. Radiofrekvencijski spektar je ograničen, a broj korisnika u velikom je porastu....
Hrčak ID: 103943
PDF (Hrvatski, 1741 KB) PDF (Engleski, 1741 KB)