30982-02-6

Upstream product

• 64-17-5 ethanol 
• 36049-78-2 2-iodooctane 
• 201230-82-2 carbon monoxide 
• 111-66-0 oct-1-ene 

Downstream Products

• 818-81-5 2-methyloctan-1-ol 

Relevant academic research and scientific papers

Hydroethoxycarbonylation of α-olefins at low pressure of carbon(II) oxide in the presence of the PdCl2(PPh3)2–PPh3–AlCl3 system

High catalytic activity of the PdCl2(PPh3)2–PPh3–AlCl3 system containing AlCl3 as promotor has been demonstrated in the reaction of hydroethoxycarbonylation of hexene-1 and octene-1 at low pressure of carbon(II) oxide (≤25 atm). The reaction yields linear and branched products. The optimal conditions of the process have been elaborated. The target products yield is 84.6–93.8%.

The scope and mechanism of palladium-catalysed Markovnikov alkoxycarbonylation of alkenes

Hydroesterification reactions represent a fundamental type of carbonylation reaction and constitute one of the most important industrial applications of homogeneous catalysis. Over the past 70 years, numerous catalyst systems have been developed that allow for highly linear-selective (anti-Markovnikov) reactions and are used in industry to produce linear carboxylates starting from olefins. In contrast, a general catalyst system for Markovnikov-selective alkoxycarbonylation of aliphatic olefins remains unknown. In this paper, we show that a specific palladium catalyst system consisting of PdX2/N-phenylpyrrole phosphine (X, halide) catalyses the alkoxycarbonylation of various alkenes to give the branched esters in high selectivity (branched selectivity up to 91%). The observed (and unexpected) selectivity has been rationalized by density functional theory computation that includes a dispersion correction.

Palladium complexes with N-heterocyclic carbene ligands as catalysts for the alkoxycarbonylation of olefins

Palladium catalysts, generated from Pd(OAc)2 and 2 equiv of N,N-dialkylbenzimidazolium iodide, are effective for the alkoxycarbonylation of olefins in high yields (>90%). Alkoxycarbonylation of 1-hexene in dimethylacetamide is achieved within 24 h at 110 C using 1 mol % catalyst, 1000 psi CO, and ethanol. Reactions can be prepared in air, without the need of an acid additive to produce ethyl 2-methylhexanoate and ethyl heptanoate in approximately a 2:1 ratio.

Facile synthesis of highly congested 1,2-diphosphinobenzenes from bis(phosphine)boronium salts

(Chemical Equation Presented) Bis(phosphine)boronium salts 3a-c were designed and prepared as key building blocks for the synthesis of highly congested diphosphinobenzenes. The preparation of sterically hindered ortho-phenylene-bridged diphosphines 1a-c was achieved by the reaction of the bis(phosphine)boronium salts 3a-c with difluorobenzenechromium complex 2 and subsequent removal of the BH2 group. The steric nature of diphosphine 1a was revealed in single-crystal X-ray analysis of its Rh complex.

HYDROFORMYLATION AND CARBOXYLATION OF OLEFINS IN PRESENCE OF STANNYLENE COMPLEXES OF METAL CARBONYLS

Stannous chloride is an activator for chromium molybdenum, and tungsten hexacarbonyls as catalysts in hydroformylation and carboxylation processes.It is considered that the catalysts of the processes are stannylene complexes formed in situ from chromium, molybdenun, and tungsten hexacarbonyls and stannous chloride.

Carbonylation of olefins and acetylenes

Olefins and acetylenes are carbonylated to a carboxylic acid or ester using a homogenous catalyst system comprising palladium together with iron or a metal of Groups IVA, VA or IIIB, the catalyst being either a polynuclear complex incorporating both metals, or a mixture of a soluble palladium salt and metal halide. Starting with cyclic di-olefins, such as cyclo-octadiene, the product cycloalkenyl carboxylic acid or ester may be cleaved to give acyclic dicarboxylic acids, such as azelaic acid.