temperatures transformed 4Bn into C(CH2OAlMe2)4(2Bn)4 5(2Bn)4 by sequential reaction of each ester group. Doubly reacted BnC(O)OCH2}2C(CH2OAlMe2)2(2Bn)2 7Bn(2Bn)2 was isolated and characterized. A Mitsubishi molecule could also be isolated, its formation rationalized by the elimination of 2Bn and TMA from 5(2Bn)4. The action of MenAlCl3–n (n = 1, 1.5, 2) was studied initially on monoester BnC(O)OMe 1Bn. Combining
甲基铝试剂与酯基润滑油的反应通过
三甲基铝(TMA)与四酯C(CH 2 OC(O)R)4(R = C 5 H 11 4 Pent,Bn 4 Bn)的反应来模拟。使用2:1
化学计量比,得到加合物4 Pent(TMA)4。在1:1–12:1 TMA / 4 Pent系统上进行的NMR光谱分析表明,4 Pent生成二甲基化加合物C 5 H 11 CMe 2 OAlMe 2(TMA),2 Pent(TMA)。通过每个酯基的顺序反应,在升高的温度下TMA与4 Bn的相似组合将4 Bn转化为C(CH 2 OAlMe 2)4(2 Bn)4 5(2 Bn)4。双反应BnC(O)OCH 2 } 2 C(CH 2 OAlMe 2)2(2 Bn)2 7 Bn(2 Bn)2进行了分离和表征。三菱分子也可以被分离出来,通过从5(2 Bn)4中消除2 Bn和TMA使其合理化。最初研究了Me n AlCl 3– n(n