Formylphenyl ether

On further reduction the process can again repeat itself, so that similar higher molecular compounds are formed. The nitro-benzylidenealdehydophenylhydroxylamines are produced from the two mentioned aldehydes. If the p-nitrobcnzaldehyde is reduced beyond the compound mentioned in. the equation, the n-p-formylphenyl ether of p-azoxybenzaldoxime is formed (Always x), as shown in the following equations ... 

Formylphenyl Methyl Tellurium1 20 g (0.05 mol) of 2-formylphenyl dimethyl telluronium iodide are dissolved in 100 m/of pyridine and the solution is heated under reflux for 3 h. The solution is then cooled and poured into a mixture of ice and dilute hydrochloric acid. The mixture is extracted with diethyl ether, the extract is washed with water, dried with magnesium sulfate, the solvent is distilled off, and the residue is fractionally distilled under vacuum yield 9.8 g (77%) b.p. 120 13070.1 torr (13.3 Pa). 

Butyl 2-Formylphenyl Tellurium5 A well-stirred mixture of 9.0 g (25 mmol) of butyl 2-(diethoxymethyl)-phenyl tellurium and 10 ml of concentrated hydrochloric acid is heated for 0.5 h. The solution is then cooled, extracted with diethyl ether, the extracts are dried with anhydrous magnesium sulfate, the solvent is evaporated, and the residue is distilled under reduced pressure yield 5.5 g (80%) b.p. 140-142°/0.1 torr. 

The ease with which the Te — Te bond in ditellurium compounds is cleaved drastically limits the reactions for the modification of functional groups that are already present in the organic part of the molecules. The conversion of bis[2-carboxyphenyl] ditellurium to bis[chlorocarbonylphenyl] ditellurium by butyl dichloromethyl ether in the presence of anhydrous zinc chloride the acid hydrolysis of the ethylene acetals of bis[4-acetylphenyl] and bis[2-acetylphenyl] ditellurium to the bis[acetylphenyl] ditellurium derivatives, the saponification of bis[co-methoxycarbonylalkyl] ditelluriums to the corresponding bis[m-carboxyalkyl] ditelluriumand the oxidation of bis[2-formylphenyl] ditellurium by silver nitrate to bis[2-carboxyphenyl] ditellurium are the modifications of the organic moieties in diorgano ditellurium compounds that have been carried out successfully. 

Varma et al. (2004) discnssed the metal complexation of different chitosan crown ethers derivatives in detail (Varma et al., 2004). Newly prepared Schiff base-type chitosan-azacrown ethers were prepared by a reaction of chitosan (CTS) with V-(4 -formylphenyl) aza-crown ethers, and were then converted to secondary-amino derivatives by the redaction of CTS-azacrown ethers with sodiiun borohydride (Malkondu et al.,... 

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