| 摘要 |
<p>1,226,177. 5 - Bromoisatin. INSTITUT DE RECHERCHES CHIMIQUES ET BIOLOGIQUES APPLIQUEES. 11 July, 1969 [26 July, 1968], No. 35815/68. Heading C2C. [Also in Division A5] 5 - Bromoisatin is prepared by forming an aqueous solution of isatin at pH 9 or above, acidifying the solution to a pH of approximately 2 and brominating the isatin suspension so formed.</p> |
