## Abstract Regioselective Suzuki crossโcoupling reactions of tetrabromoselenophene allow a convenient synthesis of arylโsubstituted selenophenes. High yields were obtained using a novel biarylโmonophosphine ligand. The first tetra(1โalkynyl)selenophene was prepared in one step by a Sonogashira rea
โฆ LIBER โฆ
On the synthesis of selenophene
โ Scribed by S. Gronowitz; T. Frejd; A. Moberg-Ogard; L. Trege
- Book ID
- 112123932
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 1976
- Tongue
- English
- Weight
- 120 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0022-152X
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Reduction of a,a'-diketo selenides with a low-valent titanium reagent usually affords 3,4\_dihydroxyselenolanes, from which the corresponding selenophenes are obtained by acid-catalyzed dehydration. A surprising exception is the formation of 2,4-dihydroxy-2,4-di-t\_butylselenolane from bis(2-t-butyl