Abstract
Isopropyl and tert-butyl propargyl carbonates (1b and 1c) were investigated as monomers for Pd(0)-catalyzed polycondensation with bisphenols. These carbonates afforded high-molecular-weight polyethers compared with methyl propargyl carbonate (1a). The number-average molecular weight (Mn) values of the obtained polyethers increased in the order of methyl carbonate 1a<isopropyl carbonate 1b<tert-butyl carbonate 1c. Pd(0)-catalyzed condensation reaction of 1a–c with p-methoxyphenol was carried out as a model reaction. The yield of the desired model product increased with increasing bulkiness of the ester group of 1 (1a<1b<1c). tert-Butyl propargyl carbonate 1c was the most effective for Pd(0)-catalyzed polycondensation with bisphenols. The use of slightly excess 1c yielded higher-molecular-weight polyethers.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
