| 摘要 |
<p>Title cpds. of formula (I) : (where R1 is H, 1-3C alkyl, 1-3C alkoxyl or halogen and R2 is 3-4C alkyl or cyclohexyl) are prepd. by reaction of benzenesulphonyl ureas of formula as in (I), with R2=H, with neutral mineral acid salts of prim. amines of formula R2NH2 in a molar ratio of urea:ammonium salt of 1:1, in the presence of unsubstd. hydrocarbons or hydrocarbon mixts., pref. toluene or octane.</p> |
