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DTBB-catalysed lithiation of 1,7-dihydrodibenzothiepin

✍ Scribed by Miguel Yus; Francisco Foubelo

Book ID
104230274
Publisher
Elsevier Science
Year
2001
Tongue
French
Weight
72 KB
Volume
42
Category
Article
ISSN
0040-4039

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Lithiated benzyllithiums from chlorobenz
Lithiated benzyllithiums from chlorobenzyl chlorides by a DTBB-catalysed lithiation
✍ Cecilia GΓ³mez; Fernando F. Huerta; Miguel Yus πŸ“‚ Article πŸ“… 1997 πŸ› Elsevier Science 🌐 French βš– 195 KB

The reaction of 2-, 3-or 4-chlorobenzyl chlorides (la-c) with an excess of lithitma and a catalytic amount of DTBB (7 tool%) in the presence of different electrophiles [priCHO, ButCHO, Et2CO, (CH2)5CO, PhCOMe, Me3SiC1] in THF at -500C leads after hydrolysis with water, to the expected dioles or disi