Although sulfurous acid does not exist in the free state, it forms stable salts (the neutral sulfite, SO32‑, and the hydrogen sulfite or bisulfite HSO3‑) which are good reducing agents.Sodium sulfite, which is used in pulp and paper bleaching, is usually produced by the reaction of ...
This ring expansion/elimination reaction proceeds first through a chlorinative ring enlargement to form a beta-chloroketone. Elimination of HCl follows to produce exocyclic enones in good yields and regioselectivity. Interestingly in the bicyclic [2.2.2] chlorinative ring expansions, each diastereomeric...
the suspension was placed on a steam bath and heated to 80°C. 6.8 g. NaOH, as 35 ml. of a 20% solution, was added dropwise over one-half hour and the reaction mixture heated for an additional one-half hour. The solution was decanted from a small amount of gummy residue and the ...
and a lighter. Heat up the metal rod, insert it into the bottle cap, then pull it out and immediately force the hose in (the melted hole should be slightly smaller than the hose). Then superglue around the hose. Set up your reaction in a water bottle, screw on cap, put hose into ...
during the reaction. In this way, a melt of urea-hydrogen sulfate or of urea-sulfate, depending on whether one or two mols of urea were introduced per mol of sulfuric acid, is obtained direct. The compounds are converted to the solid form by cooling and optionally comminuted. It is ...
[0281] The present invention also relates to a process for carrying out a photo-sensitized reaction or a reaction catalyzed by singlet oxygen, wherein one or more phthalocyanine or naphthylocyanine compounds in the presence of oxygen, are brought into contact with the medium in which or on ...