Summary:
A polymeric film as fluorescent sensor for detection of Pb2+ in aqueous solutions, synthesised from 1-vinylimidazole, poly(ethylene glycol) diacrylate and trimethylolpropane triacrylate has been described. The manuscript also describes the...
Summary:
The article presents the synthesis and characterization of two mononuclear Re(V) complexes. DFT and TD-DFT methods were employed for exploring the electronic structure and absorption spectra. Furthermore, the complexes were also tested for...
Summary:
A new copper selective solid-state electrode based on o-xylylenebis(N,N-diisobutyldithiocarbamate) ionophore has been described. It has been developed for selectively measuring the copper levels found in the tea infusion samples. Robust, cheap...
A pinacle reaction of the synthesis required the cross coupling off a two highly heteroatom functionalised fragments, the use of traditional Heck conditions, such as palladium (II) acetate, triphenyl phosphine and triethylamine afforded poor yields and...
Procedure for synthesis of intermediate 2 was repeated three times at identical scale and reaction conditions as described and then modified. When followed exact same procedure as-written (12 hours), desired compound was obtained in 14% yield (confirmed by...
This review addresses the published preparation of compound 10c as listed in JOC 69, 4361 (2004). The stated preparation utilizes the inexpensive, commercially available diol, 6c. The preparation begins by combining the diol with one equivalent of TESCl in...
This reaction was repeated to prepare O-diphenylphosphinyl hydroxylamine as this compound was reported to be a "less explosive" electrophilic aminating agent. Note: a recent improved preparation has been reported. (DSC measurements of the isolated compound...
t-Bu amine (50 mmol) and methyl acrylate (50 mmol) were dissolved in MeOH (10 mL) and stirred overnight under nitrogen. The secondary amine was isolated by Kugelrohr distillation after the MeOH had been removed by rotary evaporation. The purified material...
Summary:
This paper describes the synthesis of three iso-structural Zn(II), Cd(II), and Hg(II) complexes with 1-benzyl-2-phenyl-1H-benzimidazole (BPB). Single crystal X-ray determination of CdBPB and HgBPB were done along with Structural analysis of ZnBPB...
Covalent attachment of 1,4-dioxane to beta born of ferracarborane sandwich complexes which can be easily outfitted with many organic functional groups. Procedure worked as reported, with moderate yields of 60-70%. Higher yields were achieved at smaller scales...
Summary:
An efficient and environmentally benign method for synthesis of 1,2-disubstituted and 2 substituted benzimidazoles has been described. Although previous methods are available in literature for synthesis of such compounds, the ease of operation,...
Summary:
This paper reports the synthesis of 2-arylbenzothiazoles via cyclocondensation of 2-aminothiophenol with various aldehydes. Polyethylene glycol-400 (PEG-400) has been used as both solvent and catalyst for the process. The procedure applied, is...
Summary:
This paper describes the conceptual density functional studies on (3+1) complexes of both Re(V) as well as Tc(V). The tridentate ligands have been varied in order to study the effect of the various combinations of N, O and S chelating sites on...
This paper describes synthesis, characterization, and catalase activity of a water-soluble diMn(III) complex of a sulphonato-substituted Schiff-base ligand. DiMn(III) complex is highly efficient to disproportionate hydrogen peroxide in basic aqueous solutions...
This article describes an efficient method for solution-phase parallel synthesis of 2-quinoxalinol salen Schiff-base ligands. The novelty of this article is the synthesis of a new category of ligands using Schiff-base condensation of an aldehyde with a...
The authors describe the syntheses of several optically pure [3+4] cycloaddition product from the reaction of racemic azomethine imines and enals using indanol-derived catalyst D having N-mesityl substituent. This work pertains to the development of...
The coupling reaction between a carboxylic acid and an alcohol to generate an ester needs a carbodiimide coupling agent. in the reference, the authors report the use of EDCI to prepare compound 1. I have used the same procedure in the synthesis of 1 though...
I need prepare a series of 2-amino-pyridines around 2003, and found this paper by SciFinder.
I tested the reaction of 1-Boc-piperidine and 2-chloro-3-methyl- pyridine in 50mg scale using 5 mmol% catalysts.
The reactions were not completed in 3h at rt....
This paper by Verkade and co-workers describes a superbase P(MeNCH2CH2)3N mediated selective monoalkylation of active-methylene compounds. Although malonate alkylation has been known for many years, it is very difficult to obtain really good yields for...
This work by Lafrance and co-work represents a very mild means to induce the decarboxylation of malonic acid derivatives with 1,1-carbonyldiimidazole (CDI). The reactive intermediate carbonyl imidazole moiety can be trapped with various nucleophiles in an...