Contribution to the Reactivity of
<i>N</i>
,
<i>N′</i>
‐Diaryl‐1,4‐diazabutadienes Aryl–N=CH–CH=N–Aryl (Aryl = 2,6‐Dimethylphenyl; 2,4,6‐Trimethylphenyl) Towards Boron Trichloride
作者:Lothar Weber、Jan Förster、Hans‐Georg Stammler、Beate Neumann
DOI:10.1002/ejic.200600728
日期:2006.12
The reaction of Aryl-N=CH-CH=N-Aryl (3a: Aryl = 2,6-Me2C6H3; 3b: Aryl=2,4,6-Me3C6H2) with 2 equiv. BCl3 in a toluene/hexane mixture at -50 degrees C led to an inseparable mixture of borolium salts [Aryl-N-a=CH-CH=N(Aryl)BCl2(N-a-B)]+BCl4- (4a: Aryl = 2,6-Me2C6H3; 9a: Aryl = 2,4,6-Me3C6H2) and (Aryl-N-a=CH-C(Cl)=N(Aryl)BCl2(N-a-B)+BCl4- (4b: Aryl = 2,6-Me2C6H3; 9b: Aryl = 2,4,6-Me3C6H2) and the bicyclic
Aryl-N=CH-CH=N-Aryl(3a:Aryl = 2,6-Me2C6H3;3b:Aryl=2,4,6-Me3C6H2)与 2 当量的反应。BCl3 在 -50 摄氏度的甲苯/己烷混合物中形成不可分离的硼盐混合物 [Aryl-Na=CH-CH=N(Aryl)BCl2(NaB)]+BCl4- (4a: Aryl = 2,6- Me2C6H3; 9a: Aryl = 2,4,6-Me3C6H2) 和 (Aryl-Na=CH-C(Cl)=N(Aryl)BCl2(NaB)+BCl4- (4b: Aryl = 2,6-Me2C6H3; 9b) : Aryl = 2,4,6-Me3C6H2) 和双环类 [HCa=N(Aryl)BCl2N(Aryl)-Cb=(CaCb)](2) (5: Aryl = 2,6-Me2C6H3; 10: Aryl = 2,4,6-Me3C6H2。硼的钠汞齐还原。盐 4a