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Synthesis and characterization of a new chiral functional polymer

✍ Scribed by R.M.E Schitter; D Jocham; R Saf; C Mirtl; F Stelzer; K Hummel

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
191 KB
Volume
133
Category
Article
ISSN
1381-1169

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✦ Synopsis

Recently, we have reported the synthesis and ring-opening metathesis polymerization of enantiomerically pure and Ž . w x racemic methyl-N-1-phenylethyl -2-azabicyclo 2.2.1 hept-5-ene-3-carboxylate. In this paper, we present a new optically active 2-azanorbornene derivative that undergoes ring-opening metathesis polymerization in the presence of molybdenum

x azabicyclo 2.2.1 hept-5-ene-3-carboxamide 1 can be obtained through an asymmetric Lewis-acid-catalyzed Diels-Alder reaction of cyclopentadiene with the corresponding imine of the glyoxylic amide. Ring-opening metathesis polymerization of Ž 1 leads to the polymers, 2a and 2b, which are investigated by traditional methods such as GPC, DSC differential scanning . Ž . Ž . calorimetry and polarimetry, as well as by ESI electrospray ionisation -MS mass spectroscopy , a method that has been shown to reveal valuable information about polymer structure and end groups.

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