Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Vasant Helavi"'
Publikováno v:
Reaction Kinetics, Mechanisms and Catalysis. 130:993-1007
A heterogeneous solid acid catalyst, sulfonic acid supported on pericarp-pomegranate (sulfonic acid@PP) is prepared with green an eco-friendly approach. The prepared sulfonic acid@PP catalyst was extensively characterized by IR, FE-SEM, EDX and TGA t
Publikováno v:
Techno-Societal 2020 ISBN: 9783030699246
Some copper(II), cadmium(II) and nickel(II) complexes of the formula [Cu(L)(PPh3) H2O], [Cd(L)(PPh3)H2O], [Ni(L)(PPh3)H2O] (C1–C3) [where L = (Z)-3-(2,5-Dimethoxybenzylideneamino)-2-methylquinazolin-4(3H)-one; PPh3 = triphenylphosphine] have been s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee48f787ab58dd26ce130c9a35008941
https://doi.org/10.1007/978-3-030-69925-3_91
https://doi.org/10.1007/978-3-030-69925-3_91
Autor:
Asad Syed, Juan Frau, Sanjay N. Jadhav, Daniel Glossman-Mitnik, Sanjay Sarsamkar, Sandeep Kaulage, Norma Flores-Holguín, Shiva Prasad Kollur, Asha Srinivasan, Joaquín Ortega-Castro, Vasant Helavi, Nishad Anil, Ubale Panchsheela Ashok, Ravindra Veerapur, Sarah Al-Rashed, Bansode Prakash Arun
Publikováno v:
Molecules, Vol 25, Iss 5973, p 5973 (2020)
Molecules
Volume 25
Issue 24
Molecules
Volume 25
Issue 24
Herein, we report the synthesis and characterization of a new Schiff base ligand 3-[[(E)-(3-hydroxyphenyl)-methylidene]amino]-2-methyl-quinazolin-4(3H)-one (HAMQ) and its Cd(II), Ni(II), Zn(II), and Cu(II) complexes (C1&ndash
C4). The ligand HAM
C4). The ligand HAM
Autor:
Santosh N. Mokale, Panchsheela Ubale, Shweta A More, Nethaji Munirathinam, Rajesh Kumar Das, Vikramsinh B. More, Suma Dilipkumar, Vasant Helavi, Shiva Prasad Kollur, Shailesh Waghamare, Sahin Reja
Publikováno v:
Journal of Molecular Structure. 1251:131984
Present study describes synthesis of a series of Cu(II) metal complexes (C1 - C3) of bidentate Schiff base ligands (L1 - L3) derived from the condensation reaction of 3-amino-2-methyl-4(3H)quinazolinone with 2-chlorobenzaldehyde, 4-bromobenzaldehyde
Autor:
Shrikrishna Karhale, Vasant Helavi
Publikováno v:
SN Applied Sciences. 2
Green and atom economic protocol has been developed for one-pot, multi-component synthesis of 2H-indazolo[2,1-b]phthalazine-triones in presence of 5-sulphosalicylic acid as an organocatalyst under solvent-free conditions. Non-toxic, cost-effective ca
Publikováno v:
Materials Research, Vol 20, Iss 6, Pp 1445-1453 (2017)
Materials Research, Volume: 20, Issue: 6, Pages: 1445-1453, Published: 17 AUG 2017
Materials Research v.20 n.6 2017
Materials research (São Carlos. Online)
Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
Materials Research, Volume: 20, Issue: 6, Pages: 1445-1453, Published: 17 AUG 2017
Materials Research v.20 n.6 2017
Materials research (São Carlos. Online)
Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
Nanostructured nickel substituted zinc alluminium chromites (Zn1-xNixAlCrO4, where, x= 0.0, 0.25, 0.50, 0.75, 1.0) were prepared by simple, cost effective, sol-gel autocombustion method. Temperature of phase formation was analyzed by thermogravimetri
Publikováno v:
Research on Chemical Intermediates. 43:7073-7086
A heterogeneous solid acid catalyst has been prepared by covalent grafting of chlorosulphonic acid on the surface of sawdust (SD-OSO3H). The structure of the prepared catalyst was assessed by FT-IR, solid state CP/MAS 13C-NMR spectroscopy, field emis
Publikováno v:
Synthetic Communications. 47:680-687
Synthesis of pyrimido[1,2-a]benzimidazole and pyrano[2,3-c]pyrazole derivatives were achieved using polyethylene glycol (PEG-400) as promoting reaction medium in water under catalyst-free conditions at reflux and room temperature, respectively. The s
Publikováno v:
Research on Chemical Intermediates. 43:3915-3924
An expeditious synthesis of 2,3-dihydroquinazolin-4(1H)-ones in the presence of oxalic acid as an environmentally friendly organocatalyst is reported. The salient features of the protocol are high yields, green reaction profile, shorter reaction time
Publikováno v:
Iranian Chemical Communication, Vol 5, Iss Issue 1, pp. 1-120, Pp 105-114 (2017)
Regioselective synthesis of highly functionalized pyranopyrazoles was achieved in excellent yield from phenyl pyrazolone, substituted aromatic aldehyde with nitroketene-N,S-acetal in the presence of indium trichloride as a versatile catalyst under re