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Stealth Star Polymers:  A New High-Loading Scaffold for Liquid-Phase Organic Synthesis

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journal contribution
posted on 06.04.2000, 00:00 by Neal N. Reed, Kim D. Janda
Polyethylene glycol (PEG) has proven to be a versatile soluble−polymer support for organic synthesis, though the use of PEG has been limited by its relatively low loading (0.5 mmol/g or less). We have developed a new high-loading (1 mmol/g) soluble-star polymer based on a cyclotriphosphazene core with PEG arms that exhibit superior precipitation properties compared with those of linear PEG. Additionally, the heterocyclic core does not add interfering signals to the 1H or 13C NMR.

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