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Two new ferrocene based molecules S,S′‐bis(4‐aminophenyl)ferrocene‐1,1'‐bis(carbothioate) (I) and S,S′‐bis(3‐aminophenyl)ferrocene‐1,1'‐bis(carbothioate) (II) have been synthesized via a thioester linkage. The prepared compounds have been successfully applied as ligands for the CuI catalyzed Sonogashira coupling reaction. The ligands are highly effective for the Csp2−Csp coupling between alkyne and iodobenzene and bromobenzene. Corresponding 1,2‐disubstituted alkynes could be synthesized from both aryl and alkyl alkynes in high yield by using catalytic amount of CuI in presence of bis(3‐aminophenyl)ferrocene derivative in dioxane at 50 °C. [ABSTRACT FROM AUTHOR]

A rapid and efficient protocol for C–N and C–S cross coupling has been developed using a new square pyramidal copper complex, [Cu(DMAP)4I]I. The complex was successfully synthesized via a disproportionation reaction of CuI and DMAP in DMSO. The catalytic activity of the complex was found to be excellent for Chan–Lam coupling reaction between aryl boronic acid and amine, amide, azide or thiol. The reaction could be carried out in the presence of only 2 mol% of the copper catalyst in methanol at room temperature within a short time. [ABSTRACT FROM AUTHOR]

Abstract: DMAP was found to accelerate significantly the rate of Pd(OAc)2 catalyzed Barbier type allylation of carbonyl compounds by allylbromide using SnCl2·2H2O as reducing agent. Both aldehyde as well as ketones produced excellent yields within a short reaction time in the presence of 3mol% of Pd(OAc)2 and 12mol% of DMAP at room temperature. Aldehydes could be allylated within 5–10min whereas, in case of ketones, the reaction completes in 45–120min. [Copyright &y& Elsevier]

The introduced method gives very good yields of allylated product (III) of both aromatic as well as aliphatic aldehyde within a short time. [ABSTRACT FROM AUTHOR]

The Pd-catalyzed allylation of both aldehydes and ketones by using allyl bromide in the presence of SnCl2·2H2O as reducing agent is significantly promoted by catalytic amounts of DMAP. [ABSTRACT FROM AUTHOR]