𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Rapid microwave-assisted preparation of amino-functionalized polymers

✍ Scribed by Natalie Ljungdahl; Laura Martikainen; Nina Kann


Publisher
Elsevier Science
Year
2008
Tongue
French
Weight
257 KB
Volume
49
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

✦ Synopsis


Two different methods for the rapid microwave-assisted amination of halide-functionalized polymers were investigated. Nucleophilic substitution by phthalimide, followed by ring opening with methylamine to liberate the free amine, afforded amino-substituted polymers with up to 76% conversion. The second method involves nucleophilic substitution with azide ions and subsequent treatment with triphenylphosphine. The latter method was found to be more efficient, with up to 99% conversion in favourable cases and with a reaction time of 2 Γ‚ 30 min.


πŸ“œ SIMILAR VOLUMES


Microwave-Assisted Preparation of Semico
✍ Frank Galbrecht; Torsten W. BΓΌnnagel; Ullrich Scherf; Tony Farrell πŸ“‚ Article πŸ“… 2007 πŸ› John Wiley and Sons 🌐 English βš– 243 KB

## Abstract Polymeric semiconducting materials are being utilized as components in a new generation of electronic devices. The generation of high quality polymeric semiconductors often involves transition metal‐catalyzed cross‐coupling reactions, which require long reaction times. Microwave heating

Microwave-assisted preparation of functi
✍ Hao Yang; Yanqing Peng; Gonghua Song; Xuhong Qian πŸ“‚ Article πŸ“… 2001 πŸ› Elsevier Science 🌐 French βš– 87 KB

A series of functionalized resins were synthesized from Merrifield resin by virtue of microwave irradiation. A significant reduction in reaction time was achieved. This method provides a rapid transformation of functionalized resin in solid-phase synthesis.

Rapid, microwave-assisted synthesis of N
✍ Jerry Meng; Pei-Pei Kung πŸ“‚ Article πŸ“… 2009 πŸ› Elsevier Science 🌐 French βš– 225 KB

A robust, regioselective synthesis of 3-amino-1,2,4-triazoles is described. This reaction employs a key intermediate 2, which is coupled to carboxylic acids in good yields to afford intermediates 3a-d. These entities, in turn, react with a variety of hydrazines or hydrazine hydrochlorides to provide