generality is discussed. (Ir(cod)L2) A (L = PPh3) reacts with H2 and S (S = solvent) to give the isolable complexes (IrH2S2L2)A (1) in which the displacement order of the M-S groups is H2O = THF < /-BuOH < !-PrOH < Me2CO < EtOH < MeOH < MeCN. The utility of this order in understanding our alkane activation system based on 1 and the effects of S on catalytic hydrogenation are discussed. 1 (S = H2O) reacts
对催化剂 (Ir(cod)
L2)A/
CH2 C
L2/H2(cod =
1,5-环辛二烯;A =
BF4;L = PPh3、PMePh2)进行了均匀性测试,并讨论了它们可能的通用性。(Ir(cod)
L2) A (L = PPh3) 与 H2 和 S(S = 溶剂)反应生成可分离的复合物 (IrH2S2
L2)A (1),其中 MS 基团的置换顺序为
H2O = THF < / -BuOH < !-PrOH < Me2CO < EtOH < MeOH < MeCN。讨论了该顺序在理解我们基于 1 的烷烃活化系统中的效用以及 S 对催化氢化的影响。1 (S = ) 在 -80 0C 与烯烃反应生成 (IrH2(Ol)2L2)A (ol = C 2H4, C3Hg) 和 (IrH2(Ol)( )L2 )A (ol = PhCH=CH 2 ,
C5H8, '-BuCH= )。从逐步催化的角度讨论了它们在加氢中的作用