1,1-Dianisyl-2,2,2-trichloroethyl ethers — A new protection for the hydroxyl group
Autor: | S. Lehnhoff, Ivar Ugi, Rosa Maria Karl, Roland Klösel, Stephan König |
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Rok vydání: | 1995 |
Předmět: | |
Zdroj: | Tetrahedron. 51:3759-3766 |
ISSN: | 0040-4020 |
DOI: | 10.1016/0040-4020(95)00120-w |
Popis: | β-Haloalkyl protecting groups are well established However, there was a lack of an appropriate protection, especially for carboxyl and vicinal hydroxyl groups. This problem was now solved by design of the 1,1-dianisyl-2,2,2-trichloroethyl group (DATE). The alkylation of model alcohols with the DATE moiety is described The resulting β-haloallryl ethers proved to be remarkable stable against acids and bases. Deblocldng of the model alcohols is achieved in high yields. |
Databáze: | OpenAIRE |
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