Novel Introduction of a Tetrafluoroethylene (-CF2CF2-) Unit into Organic Molecules

Autor:	Shinya Takano, Yusuke Tanaka, Takashi Ishihara, Yoshikazu Takahashi, Tsutomu Konno, Hideaki Konishi
Rok vydání:	2010
Předmět:	chemistry.chemical_classification Lithium bromide Magnesium Organic Chemistry chemistry.chemical_element Aldehyde Silane Chemical synthesis Catalysis Organic molecules Adduct chemistry.chemical_compound chemistry Polymer chemistry Tetrafluoroethylene
Zdroj:	Synthesis. 2011:33-44
ISSN:	1437-210X 0039-7881
DOI:	10.1055/s-0030-1258330
Popis:	The reductive coupling of 4-bromo-3,3,4,4-tetrafluo- robut-1-ene with 2.4 equivalents of various carbonyl compounds proceeded very smoothly in the presence of 2.4 equivalents of MeLi/LiBr-free at -78 °C for two hours, giving the corresponding adducts in high to excellent yields. On the other hand, trieth- yl(1,1,2,2-tetrafluorobut-3-enyl)silane, which could be prepared by treatment of 4-bromo-3,3,4,4-tetrafluorobut-1-ene and chlorotrieth- ylsilane with magnesium at 0 °C for three hours, reacted with some aldehydes in the presence of 1 mol% of tetrabutylammonium fluo- ride, the desired adducts being obtained in good to high yields.
Databáze:	OpenAIRE
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