ChemInform Abstract: C—H Carboxylation of Terminal Alkynes Catalyzed by Low Loadings of Silber(I)/DMSO at Ambient CO₂ Pressure.

Abstract

Pressure. -(ARNDT, M.; RISTO, E.; KRAUSE, T.; GOOSSEN*, L. J.; ChemCatChem 4 (2012) 4, 484-487, http://dx.

Catalytic conversion of carbon dioxide to carboxylic acid derivatives

“…In addition, a reaction protocol that permits the C(sp)-H carboxylation of alkynes under mild conditions and ambient CO 2 pressure with ppm-quantities of silver catalyst was also proposed by the same group. 72 Th e carboxyaltion of alkyne with CO 2 can be introduced to synthesize the arylnaphthalene lignan lactone type natural products in a one-pot multicomponent coupling protocol. 73 Th rough carboxylative cyclization, the corresponding 1,6-diyne intermediate is cyclized to aff ord the desired lactone with regioselectivity depending on the substitutes in aromatic rings as shown in Scheme 18 .…”