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Zeolite catalyzed efficient synthesis of perimidines at room temperature
Diaminonaphthalene perimidine zeolite
2010/4/8
Arylperimidines, 3(a-l), were synthesized in good yields by cyclocondensation reaction of 1,8-diaminonaphthalene and aromatic aldehydes in the presence of NaY zeolite as a catalyst. The simple environ...
2,2'-Binaphthylene phosphorochloridite (BINOL-PCl) as a bulky and efficient reagent for the conversion of primary and secondary alcohols into iodides, and tertiary alcohols stereo- and/or regioselectively into olefin(s)
Alkyl iodide 2,2'-dihydroxy-1,1'-dinaphthalene (BINOL) 2,2'-binaphthylene phosphorochloridite (BINOL-PCl) stereoselective anti-E2 elimination reaction heavy atom effect
2010/4/8
Primary and secondary alcohols were transformed in high yield to corresponding iodides by 4-chloro-3,5-dioxaphosphacyclohepta [2,1-a; 3,4-a'] dinaphthalene (BINOL-PCl) at room temperature. The tertiar...
One-pot synthesis of amidoalkyl naphthols using NaHSO4.SiO2 as an efficient and recyclable heterogeneous catalyst
NaHSO4.SiO2 amidoalkyl naphthol multi-component reaction heterogeneous catalyst amide
2010/4/8
An efficient synthesis of amidoalkyl naphthols using silica supported sodium hydrogen sulphate as heterogeneous catalyst under a thermal solvent-free green procedure is described. This simple protoco...
An Efficient Algorithm for Haplotype Inference on Pedigrees with a Small Number of Recombinants
computational biology, haplotype inference, pedigree, recombinare combination,algorithm, probabilistic model.
2012/12/3
Combinatorial (or rule-based) methods for inferring haplotypes from genotypes on a pedigree have been studied extensively in the recent literature. These methods generally try to reconstruct the haplo...
H2{SO}4-silica as an efficient and chemoselective catalyst for the synthesis of acylal from aldehydes under solvent-free conditions
Acylals aldehydes catalysis solvent-free reactions
2010/4/9
A variety of aldehydes react with acetic anhydride in the presence of a catalytic amount of H2SO4-silica to afford the corresponding 1,1-diacetates (acylals) in excellent yields. Ketones are not affec...
Highly efficient energy excitation transfer in light-harvesting complexes: The fundamental role of noise-assisted transport
energy excitation light-harvesting complexes undamental role of noise-assisted transport
2010/4/9
Excitation transfer through interacting systems plays an important role in many areas of physics, chemistry, and biology. The uncontrollable interaction of the transmission network with a noisy enviro...
An Efficient Monte Carlo Algorithm for a Restricted Class of Scattering Problems in Radiation Transfer
Monte Carlo Algorithm Scattering Problems Radiation Transfer
2009/6/9
An Efficient Monte Carlo Algorithm for a Restricted Class of Scattering Problems in Radiation Transfer。
How effective and efficient are multiobjective evolutionary algorithms at hydrologic model calibration?
evolutionary multiobjective optimization Strength Pareto Evolutionary Algorithm 2
2009/5/13
This study provides a comprehensive assessment of state-of-the-art evolutionary multiobjective optimization (EMO) tools' relative effectiveness in calibrating hydrologic models. The relative computati...
Efficient reconstruction of dispersive dielectric profiles using time domain reflectometry (TDR)
time domain reflectometry dispersive dielectric profiles
2009/5/13
We present a numerical model for time domain reflectometry (TDR) signal propagation in dispersive dielectric materials. The numerical probe model is terminated with a parallel circuit, consisting of a...
Reply to J. Vrugt's comment on “How effective and efficient are multiobjective evolutionary algorithms at hydrologic model calibration?”
evolutionary algorithms hydrologic model
2009/5/12
Reply to J. Vrugt's comment on “How effective and efficient are multiobjective evolutionary algorithms at hydrologic model calibration?”.
Comment on “How effective and efficient are multiobjective evolutionary algorithms at hydrologic model calibration?”by Y. Tang et al., Hydrol. Earth Syst. Sci., 10, 289–307, 2006
hydrologic model algorithms
2009/5/12
Comment on “How effective and efficient are multiobjective evolutionary algorithms at hydrologic model calibration?”by Y. Tang et al., Hydrol. Earth Syst. Sci., 10, 289–307, 2006.
Synthesis of 5-Arylamino-1H (2H)-tetrazoles and 5-Amino-1-aryl-1H-tetrazoles from Secondary Arylcyanamides in Glacial Acetic Acid: A Simple and Efficient Method
5-Arylamino-1H (2H)-tetrazoles 5-amino-1-aryl-1H-tetrazoles arylcyanamides guanyl azides glacial acetic acid
2010/4/9
A simple and efficient method for the preparation of 5-arylamino-1H (2H)-tetrazoles (3a-i) and 5-amino-1-ary-1H-tetrazoles (4a-i), with excellent yields and high purity, from secondary arylcyanamides ...
Ferric Hydrogen Sulfate as an Efficient Heterogeneous Catalyst for Environmentally Friendly Greener Synthesis of 1,8-Dioxo-Octahydroxanthenes
Fe(HSO4)3 dimedone heterogeneous catalyst 1,8-dioxo-octahydroxanthene
2010/4/9
Ferric hydrogen sulfate was used as an environmentally friendly heterogeneous acidic catalyst for the greener, 1-pot, 3-component synthesis of 1,8-dioxo-octahydroxanthene via condensation reactions be...
Mild and Efficient Iodination of Aromatic Compounds with Trichloroisocyanuric Acid/I2/Wet SiO2 System
Iodination trichloroisocyanuric acid aromatic compound wet SiO2
2010/4/9
Iodoarenes can be obtained using trichloroisocyanuric acid/I2/wet SiO2 system at room temperature with high yield in CH2Cl2.
Computations and Parameterizations of the Nonlinear Energy Transfer in a Gravity-Wave Spectrum. Part I：A New Method for Efficient Computations of the Exact Nonlinear Transfer Integral
Nonlinear Energy Transfer Gravity-Wave Spectrum Nonlinear Transfer Integral
2009/1/16
A more efficient method of computing the nonlinear transfer in a surface wave spectrum is developed which is symmetrical with respect to all wavenumbers of the resonant interaction quadruplets. This e...