CoBr2-TMTU-zinc catalysed-Pauson-Khand reaction.

CoBr2-TMTU-zinc catalysed-Pauson-Khand reaction.

Chemical communications (Cambridge, England) (2012-03-24)

Yuefan Wang, Lingmin Xu, Ruocheng Yu, Jiahua Chen, Zhen Yang

ABSTRACT

A cobalt-TMTU complex, derived from the in situ reduction of CoBr(2) with Zn in the presence of TMTU, can catalyze Pauson-Khand reaction at a balloon pressure of CO, which enables the synthesis of structurally diverse cyclopentenones. This catalytic system works efficiently for both intermolecular and intramolecular PK reactions.

MATERIALS

Product Number

Brand

Product Description

115169

Sigma-Aldrich

Tetramethylthiourea, 98%

Pricing and availability is not currently available.

334022

Sigma-Aldrich

Cobalt(II) bromide, 99%

Pricing and availability is not currently available.

427136

Sigma-Aldrich

Cobalt(II) bromide, AnhydroBeads^™, −10 mesh, 99.99% trace metals basis

Pricing and availability is not currently available.