分子式为C 7 H 7 NO 2 的化合物A,A与Sn+HCl反应,生成分子式为C 7 H 9 N的化合物B,B和NaNO 2 +HCl在0℃下反应,生成分子式为C 7 H 7 ClN 2 的一种盐C;在稀盐酸中C与CuCN(或KCN)反应,生成分子式为C 8 H 7 N的化合物D;D在稀盐酸中水解得分子式C 8 H 8 O 2 的有机酸E;E用KMnO 4 氧化得到另一种酸F;F受热时生成分子式C 8 H 4 O 3 的酸酐G。试写出化合物从A到G的构造式。
【简答题】Read the following essay question and introduction then choose which is the right conclusion. Introduction: It is true that many leaders and senior executives
in global companies are elderly people. ...