Expeditious and efficient syntheses of pure 4-methyl and 4,6-disubstituted dibenzothiophenes
Autor: | Paul Caubere, Sandrine Adach-Becker, Catherine Kuehm-Caubère, Yves Fort |
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Rok vydání: | 1996 |
Předmět: | |
Zdroj: | Tetrahedron. 52:9087-9092 |
ISSN: | 0040-4020 |
DOI: | 10.1016/0040-4020(96)00459-0 |
Popis: | 4-Lithio and 4,6-dilithiodibenzothiophenes were efficiently obtained by lithiation of dibenzothiophene with BuLi and BuLi-TMEDA, respectively. Very pure 4-methyl- and 4,6-dimethyldibenzothiophenes, substrates of great request in hydrosulfurization studies were easily prepared, on large scale and in excellent yields. |
Databáze: | OpenAIRE |
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