Synthesis of aromatic triols and triacids from oleic and erucic acid: separation and characterization of the asymmetric and symmetric isomers
摘要:
Hexasubstituted benzene derivatives, aromatic triols 4, 9 and triacids 5, 10 have been synthesized front oleic and erucic acid derivatives followed by a cyclotrimerization step catalyzed by palladiuni-on-carbon (Pd/C) and chlorotrimethylsilane (TMSCI). The asymmetric isomer, which is the main product, was isolated from its symmetric isomer by flash chromatography. All the products were fully characterized by FIR, H-1 NMR, C-13 NMR and mass spectrornetry. The products are suitable monomers for the production of polyurethanes, polyesters and polyamides. (c) 2007 Elsevier Ireland Ltd. All rights reserved.
Synthesis of aromatic triols and triacids from oleic and erucic acid: separation and characterization of the asymmetric and symmetric isomers
作者:Jin Yue、Suresh S. Narine
DOI:10.1016/j.chemphyslip.2007.11.002
日期:2008.3
Hexasubstituted benzene derivatives, aromatic triols 4, 9 and triacids 5, 10 have been synthesized front oleic and erucic acid derivatives followed by a cyclotrimerization step catalyzed by palladiuni-on-carbon (Pd/C) and chlorotrimethylsilane (TMSCI). The asymmetric isomer, which is the main product, was isolated from its symmetric isomer by flash chromatography. All the products were fully characterized by FIR, H-1 NMR, C-13 NMR and mass spectrornetry. The products are suitable monomers for the production of polyurethanes, polyesters and polyamides. (c) 2007 Elsevier Ireland Ltd. All rights reserved.