| 摘要 |
<p>A monoalkylaromatic hydrocarbon is haloethylated to a 1-halo-1-arylethane with minimal co-formation of diarylalkane by-product by reacting it with hydrogen chloride or bromide and acetaldehyde in the presence of sulfuric acid only until not more than about 60% of the monoalkylaromatic hydrocarbon has been converted.</p> |
