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
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