In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Quality Control of 2,2-Dimethyl-2,3-dihydrobenzofuran-7-ol, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 1563-38-8, name is 2,2-Dimethyl-2,3-dihydrobenzofuran-7-ol. In an article，Which mentioned a new discovery about 1563-38-8
Process for the production of N-methylcarbamates: STR1 (wherein RO- is the radical of a substituted phenol or of a naphthol), wherein: in a first reaction step methylamine and diphenyl carbonate are reacted with each other, operating in the liquid phase and as a continuous process, in order to form phenol and phenyl-N-methylurethane; in a second reaction step phenyl-N-methylurethane, within the related reaction mixture outcoming from the first step, is thermally continuously decomposed, to yield a gaseous stream containing methyl isocyanate, from which the components different than methyl isocyanate are condensed off; in a third step the methyl isocyanate stream, outcoming from the second step, after an optional preliminary condensation, is continuously fed and contacted with a solution of a substituted phenol or of a naphthol in an inert organic solvent, containing a basic catalyst, to form N-methylcarbamate (I); N-methylcarbamate (I) is finally recovered from the reaction mixture outcoming from the third step.
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Reference：
Benzofuran – Wikipedia,
Benzofuran | C8H2321O – PubChem