Binuclear organometallic compounds. Part II. Reactions of triorganotin hydrides with iridium(I) and rhodium(I) complexes
作者:M. F. Lappert、N. F. Travers
DOI:10.1039/j19700003303
日期:——
Hydrostannation of the iridium(I) complexes, trans-IrXCOL2(where X = Cl, Br, or I; L = PPh3, PPh2Me, or PPhEt2) by the tri-organotin hydrides, R3SnH (where R = Me, Et, or Ph), yields the iridium(III) species, R3SnIr-HXCOL2, the stereochemical configurations of which are discussed on the basis of i.r. and n.m.r. data. The rhodium(I) complex, RhClCO(PPhEt2)2 does not react with tri-organotin hydrides
Reactions of Thiocarbamoyl compounds with vaska complexes: mechanism and stereochemistry
作者:W.K. Dean
DOI:10.1016/s0022-328x(00)90628-4
日期:1980.5
known reactions of Vaska-type complexes with Me2NCSCl to give [trans-(Ph3P)2Ir(η2-CSNMe2)COCl]Cl and trans-(Ph3P)2Rh(η2-CSNMe2)Cl2 probably follow a similar course. (PH3P)RuNOCl reacts with (Me2NCS)2S and Me2NCSCl in the same way as (Ph3P)2IrCOCl, but reacts with (Me2NCS)2NPh to give [trans-(Ph3P)2Ru(η2-CSNMe2)NOCl]PF6. The mechanism and stereochemistry of these reactions are discussed. Reactions were
Selective hydroboration of equilibrating allylic azides
作者:Ruzhang Liu、Yuanyuan Zhang、Jun Xu
DOI:10.1039/d1cc02520a
日期:——
The iridium(I)-catalyzed hydroboration of equilibrating allylic azides is reported to provide only the anti-Markovnikov product of alk-1-ene isomers in good yields and with good functional group tolerance.
据报道,平衡的烯丙基叠氮化物的铱( I ) 催化硼氢化仅以良好的收率和良好的官能团耐受性提供了烷-1-烯异构体的反马尔科夫尼科夫产物。
Mechanism of oxidative addition of allylic halides to iridium(I) complexes
作者:Ralph G. Pearson、Arthur T. Poulos
DOI:10.1016/s0020-1693(00)94679-6
日期:1979.1
Abstract A detailed study has been made of the oxidativeaddition reaction of allylic halides to IrCI(CO)(P(CH 3 ) 2 C 6 (H 5 ) 2 in benzene in methanol. In benzene the reaction probably occurs by way of a π-allyl intermediate. This reacts with anion to give a product with α o-ally group bonded to the metal cis to the added anion. Both crotyl α-methylallyl chlorides give the same products since they
摘要对甲醇中苯中卤代烯丙基卤与IrCI(CO)(P(CH 3)2 C 6(H 5)2的氧化加成反应进行了详细的研究,在苯中该反应可能以π的方式发生。 -烯丙基中间体,与阴离子反应,生成具有与金属顺式键合的αo-烯丙基的产物,并与添加的阴离子结合,由于它们形成相同的π-烯丙基,因此两个巴豆基α-甲基烯丙基氯化物均提供相同的产物。 π-烯丙基不是中间产物,因为巴豆酰氯α-甲基烯丙基氯会生成不同的σ-烯丙基产物,其中金属原子主要与带有氯的碳原子键合,添加到甲醇中的阴离子可以添加到它反式键合的溶液中提出了一种改进的双键参与的SN 2机理,用于两种溶剂。
A kinetic and mechanistic study of the formation of sulfinato iridium(III) complexes by oxidative addition reactions
作者:M. Kubota、C.J. Curtis、T.G. Chappell
DOI:10.1016/s0020-1693(00)87294-1
日期:1978.1
p- ClC 6 H 4 6 H 5 p- CH 3 C 6 H 4 n- C 3 H 7 . The activation parameters for the reaction of Ir(CO)Cl(PPh 3 ) 2 with PhSO 2 Cl in benzene are ΔH* = 16 kcal/mol and ΔS* = −14 cal/deg mol. This reaction it not inhibited by radical scavengers galvinoxyl or duroquinone and not promoted by benzoyl peroxide. The mechanistic implications of these results are discussed.
摘要通过二阶速率定律给出了磺酰氯(RSO 2 Cl)氧化加成反式-Ir(CO)XL 2的动力学:速率= k 2 [Ir(CO)XL 2] [RSO 2 Cl]。随着配体L和X的碱性增加,速率以Cl 3 3 p -CH 3 C 6 H 4)3 3)Ph 2的顺序增加。RSO 2 Cl中速率对R的依赖性为p-ClC 6 H 4 6 H 5 p-CH 3 C 6 H 4 n-C 3 H 7。Ir(CO)Cl(PPh 3)2与PhSO 2 Cl在苯中的反应的活化参数为ΔH* = 16 kcal / mol和ΔS* = -14 cal / deg mol。该反应不受自由基清除剂加尔维诺尔或杜罗醌的抑制,也不受过氧化苯甲酰的促进。讨论了这些结果的机械含义。