PROCESS FOR THE PREPARATION OF HIGH PURITY NORBORNENE ALKANOLS AND DERIVATIVES THEREOF
A process for the preparation of a variety of high purity norbornene alkanol monomers and their derivatives is disclosed and claimed. Specifically, a process for the preparation of industrial scale high purity norbornene methanol and its silyl ether derivative is disclosed and claimed. The high purity monomers prepared in accordance with the process of this invention are useful in a variety of applications including but not limited to the preparation of high quality and high purity polynorbornenes having utility in a variety of electronic applications, among various other applications.
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Page/Page column 16
(2014/07/08)
Enzyme mediated optical resolution of endo-norbornene lactone
The enzymatic resolution of some norbornene esters, -carboxylic acids and -methanols was evaluated. Good results were obtained for the Porcine Pancreatic Lipase (PPL) catalyzed transesterification of norbornene methanols 12 and 13 in methyl acetate. A formal kinetic resolution of endo-norbornene lactone 7 could be achieved through the PPL-catalyzed transesterification of iodolactone 15 in methyl acetate. Both enantiomers of lactone 7 were obtained enantiomerically pure in good overall yields.
Janssen,Klunder,Zwanenburg
p. 7219 - 7222
(2007/10/02)
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