140238-46-6

Basic information

• Product Name: 2-n-propylhexanal
• CAS NO: 140238-46-6
• Molecular Weight: 142.241
• Mol File: 140238-46-6.mol
• Article Data: 33

Chemical Properties

• CAS DataBase Reference: 2-n-propylhexanal(CAS DataBase Reference)
• NIST Chemistry Reference: 2-n-propylhexanal(140238-46-6)
• EPA Substance Registry System: 2-n-propylhexanal(140238-46-6)

Safety Data

• Hazardous Substances Data: 140238-46-6(Hazardous Substances Data)

Upstream product

• 14850-23-8 trans-4-Octene 
• 201230-82-2 carbon monoxide 
• 111-66-0 oct-1-ene 
• 1942-45-6 4-Octyne 
• 111-67-1 2-octene 
• 592-99-4 4-octene 
• 14919-01-8 (E)-3-octene 
• 13389-42-9 trans-2-Octene 
• 7642-15-1 (Z)-oct-4-ene 
• 14850-22-7 oct-3-ene 
• 67-56-1 methanol 
• 124-38-9 carbon dioxide 

Relevant articles and documents

Phosphonium-based aminophosphines as bifunctional ligands for sequential catalysis of one-pot hydroformylation-acetalization of olefins

A series of ionic phosphonium-based aminophosphines L1-L3 were prepared and fully characterized, in each of which the involved bifunctional moieties of the phosphine fragment and Lewis acidic phosphonium were linked together by stable chemical bonds and bridged by one N-atom. The molecular structure of the L2-ligated Rh-complex (Rh-L2) indicated that such bifunctionalities were well retained without incompatibility problems. Investigations on co-catalysis over L1-L3 showed that L3 exhibited the best sequential catalysis for both hydroformylation and acetalization. The phosphine fragment in L3 was responsible for hydroformylation together with the Rh-complex and the phosphonium acted as the Lewis acidic catalyst in charge of acetalization. The L3-Rh(acac)(CO)2 system also exhibited good generality to hydroformylation-acetalization of a wide range of olefins in different alcohols.

A modular family of phosphine-phosphoramidite ligands and their hydroformylation catalysts: steric tuning impacts upon the coordination geometry of trigonal bipyramidal complexes of type [Rh(H)(CO)2(P^P?)]

Four new phosphine-phosphoramidite bidentate ligands have been synthesised and studied in rhodium-catalysed hydroformylation. Variable temperature NMR studies have been used along with HPIR to investigate the coordination mode of the trigonal bipyramidal complexes formed from [Rh(acac)(CO)2], ligand and syngas. It was found that small changes to the ligand structure have a large effect on the geometry of the active catalytic species. The rhodium catalysts of these new ligands were found to give unusually high iso-selectivity in the hydroformylation of propene and 1-octene.

METHOD FOR HYDROFORMYLATION OF UNSATURATED COMPOUNDS

The invention relates to a method for hydroformylation of unsaturated compounds such as olefins and alkynes using mixtures of synthesis gas (CO/H2), in which either the unsaturated compounds and a catalyst are heated to a reaction temperature of 60 to 200° C. and the synthesis gas is then added, or the unsaturated compounds and the catalyst are brought into contact with pure CO at normal temperature in a preformation step, then are heated to reaction temperature and on reaching the reaction temperature the CO is replaced by the synthesis gas. The pressure is 1 to 200 bar and the CO:H2 ratio in the synthesis gas is in the range from 1:1 to 50:1. The iridium catalyst used comprises a phosphorus-containing ligand in the iridium:ligand ratio in the range from 1:1 to 1:100. With high catalyst activities and low catalyst use, very high turnover frequencies are achieved.