Fig. 1: Monomer synthesis overview. | Nature Communications

Fig. 1: Monomer synthesis overview.

From: Biobased chiral semi-crystalline or amorphous high-performance polyamides and their scalable stereoselective synthesis

Fig. 1: Monomer synthesis overview.The alternative text for this image may have been generated using AI.

Synthesis pathway with yields and diastereomeric excess (de) of intermediates for the production of the lactam isomers 5-3S and 5-3R (yields refer to the small-scale experiments from purified starting material). The labelling of the stereo-centre C3 at all intermediates follows the recommendation for terpene carbon skeleton numbering of M. W. Grafflin, which suggest that the initial carbon labels of (+)-3-carene are fixed also in case of functionalization44.

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