A one-pot strategy for the synthesis and functionalization of hyperbranched polytriazoles.

Herein we report a one-pot strategy for the synthesis and functionalization of hyperbranched polytriazoles by means of the Huisgen 1,3-dipolar cycloaddition of an AB-type monomer containing an alkyne and two azide groups. The AB monomer is synthesized starting from dimethyl 5-hydroxyisophthalate in four steps with an overall yield of 58%, and the synthesis and purification are straightforward. The synthesis of end-capped hyperbranched polytriazoles (HBPTs) can be achieved via the Huisgen cycloaddition of the AB monomer using only heat, followed by functionalization with either sulfonic acid (-SOH) or pentafluorophenyl (-Ph-F) end groups.

A Fluorescence-Based High-Throughput Screening Method for Olefin Metathesis Using a Ratiometric Fluorescent Probe.

()-1,8-Di(pyren-1-yl)oct-4-ene () was prepared as a probe for olefin metathesis. The conversions of substrate by olefin metathesis under various conditions were calculated using the ratiometric fluorescence intensity change of . The conversions calculated by and gas chromatography were consistent.