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Synthesis and photovoltaic properties of narrow band gap copolymers of dithieno[3,2-b:2′,3′-d]thiophene and diketopyrrolopyrrole

✍ Scribed by Patil, Abasaheb V.; Lee, Woo-Hyung; Kim, Kyuri; Park, Hanok; Kang, In Nam; Lee, Soo-Hyoung


Book ID
120400569
Publisher
The Royal Society of Chemistry
Year
2011
Tongue
English
Weight
535 KB
Volume
2
Category
Article
ISSN
1759-9954

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A convenient and improved synthesis of d
✍ Fredrik Allared; Jonas Hellberg; Tommi Remonen 📂 Article 📅 2002 🏛 Elsevier Science 🌐 French ⚖ 52 KB

An improved synthesis of dithieno[3,2-b:2%,3%-d]thiophene 1 is presented. By starting from 2,3-dibromothiophene 2 the total yield was improved from 35 to 58%. We also describe a more convenient synthesis of one of the reagents, benzenesulfonic acid thioanhydride 3.