Methyl iodide MeCO

Ir2(ju PPh2)(CO)(PNNP)] reacts in two successive irreversible oxidative addition steps with either acetyl chloride or methyl iodide to give the diacyl [Ir2 (/z-PPh2 )(CO)2 (PNNP)(MeCO)2 (Cl)2] and dimethyl [Ir2(/t-PPh2)(CO)2(PNNP)(Me)2(I)2] complexes, respectively, in which iridium is Ir111.586... 

Pr, Bu", MeCO, CH2=CHCH2, aniline). The [Rhpy4Cl2] ion reacts with a variety of Schiff bases in boiling pyridine solution (in the presence of Zn dust and PF ), to generate a family of complexes of the form [Rh(SB)py2]PFt (121)." These all formed methyl adducts with Rh "—Me bonds when reacted with methyl iodide. " A similar reaction path ([Rh(py)4Cl2]Cl + Zn dust + Schiff base) was used to prepare [Rh(N—0)2py2] (122). In the absence of Zn dust, [Rh(py)4Cl2] is unreactive toward Schiff bases, even when refluxed in pyridine for many hours. The best yields are obtained when equivalent amounts of Zn and Rh are reacted." ... 

Cyanomethyltributyltin is a reagent for Pd-catalyzed cyanomethylation of aryl bromides with the Me, MeO or Cl substituent, but not with the MeCO, CN or NOj substituent (equation 111). ° Dicyano-methylation of aryl iodides can be achieved with a sodium salt of malononitrile in the presence of Pd complexes (equation 112). 2i... 

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